Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2009 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | #define LOG_TAG "MPEG4Extractor" |
| 18 | #include <utils/Log.h> |
| 19 | |
Andreas Huber | 57515f3 | 2009-10-23 09:55:10 -0700 | [diff] [blame] | 20 | #include "include/MPEG4Extractor.h" |
Andreas Huber | bd7b43b | 2009-10-13 10:22:55 -0700 | [diff] [blame] | 21 | #include "include/SampleTable.h" |
Gloria Wang | c6091dd | 2011-05-03 15:59:03 -0700 | [diff] [blame] | 22 | #include "include/ESDS.h" |
| 23 | #include "include/TimedTextPlayer.h" |
Andreas Huber | bd7b43b | 2009-10-13 10:22:55 -0700 | [diff] [blame] | 24 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 25 | #include <arpa/inet.h> |
| 26 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 27 | #include <ctype.h> |
| 28 | #include <stdint.h> |
| 29 | #include <stdlib.h> |
| 30 | #include <string.h> |
| 31 | |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 32 | #include <media/stagefright/foundation/ADebug.h> |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 33 | #include <media/stagefright/DataSource.h> |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 34 | #include <media/stagefright/MediaBuffer.h> |
| 35 | #include <media/stagefright/MediaBufferGroup.h> |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 36 | #include <media/stagefright/MediaDefs.h> |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 37 | #include <media/stagefright/MediaSource.h> |
| 38 | #include <media/stagefright/MetaData.h> |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 39 | #include <media/stagefright/Utils.h> |
| 40 | #include <utils/String8.h> |
| 41 | |
| 42 | namespace android { |
| 43 | |
| 44 | class MPEG4Source : public MediaSource { |
| 45 | public: |
| 46 | // Caller retains ownership of both "dataSource" and "sampleTable". |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 47 | MPEG4Source(const sp<MetaData> &format, |
| 48 | const sp<DataSource> &dataSource, |
Andreas Huber | fa8de75 | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 49 | int32_t timeScale, |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 50 | const sp<SampleTable> &sampleTable); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 51 | |
| 52 | virtual status_t start(MetaData *params = NULL); |
| 53 | virtual status_t stop(); |
| 54 | |
| 55 | virtual sp<MetaData> getFormat(); |
| 56 | |
| 57 | virtual status_t read( |
| 58 | MediaBuffer **buffer, const ReadOptions *options = NULL); |
| 59 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 60 | protected: |
| 61 | virtual ~MPEG4Source(); |
| 62 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 63 | private: |
Andreas Huber | ba7ec91 | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 64 | Mutex mLock; |
| 65 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 66 | sp<MetaData> mFormat; |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 67 | sp<DataSource> mDataSource; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 68 | int32_t mTimescale; |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 69 | sp<SampleTable> mSampleTable; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 70 | uint32_t mCurrentSampleIndex; |
| 71 | |
| 72 | bool mIsAVC; |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 73 | size_t mNALLengthSize; |
| 74 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 75 | bool mStarted; |
| 76 | |
| 77 | MediaBufferGroup *mGroup; |
| 78 | |
| 79 | MediaBuffer *mBuffer; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 80 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 81 | bool mWantsNALFragments; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 82 | |
Andreas Huber | 8a43277 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 83 | uint8_t *mSrcBuffer; |
| 84 | |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 85 | size_t parseNALSize(const uint8_t *data) const; |
| 86 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 87 | MPEG4Source(const MPEG4Source &); |
| 88 | MPEG4Source &operator=(const MPEG4Source &); |
| 89 | }; |
| 90 | |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 91 | // This custom data source wraps an existing one and satisfies requests |
| 92 | // falling entirely within a cached range from the cache while forwarding |
| 93 | // all remaining requests to the wrapped datasource. |
| 94 | // This is used to cache the full sampletable metadata for a single track, |
| 95 | // possibly wrapping multiple times to cover all tracks, i.e. |
| 96 | // Each MPEG4DataSource caches the sampletable metadata for a single track. |
| 97 | |
| 98 | struct MPEG4DataSource : public DataSource { |
| 99 | MPEG4DataSource(const sp<DataSource> &source); |
| 100 | |
| 101 | virtual status_t initCheck() const; |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 102 | virtual ssize_t readAt(off64_t offset, void *data, size_t size); |
| 103 | virtual status_t getSize(off64_t *size); |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 104 | virtual uint32_t flags(); |
| 105 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 106 | status_t setCachedRange(off64_t offset, size_t size); |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 107 | |
| 108 | protected: |
| 109 | virtual ~MPEG4DataSource(); |
| 110 | |
| 111 | private: |
| 112 | Mutex mLock; |
| 113 | |
| 114 | sp<DataSource> mSource; |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 115 | off64_t mCachedOffset; |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 116 | size_t mCachedSize; |
| 117 | uint8_t *mCache; |
| 118 | |
| 119 | void clearCache(); |
| 120 | |
| 121 | MPEG4DataSource(const MPEG4DataSource &); |
| 122 | MPEG4DataSource &operator=(const MPEG4DataSource &); |
| 123 | }; |
| 124 | |
| 125 | MPEG4DataSource::MPEG4DataSource(const sp<DataSource> &source) |
| 126 | : mSource(source), |
| 127 | mCachedOffset(0), |
| 128 | mCachedSize(0), |
| 129 | mCache(NULL) { |
| 130 | } |
| 131 | |
| 132 | MPEG4DataSource::~MPEG4DataSource() { |
| 133 | clearCache(); |
| 134 | } |
| 135 | |
| 136 | void MPEG4DataSource::clearCache() { |
| 137 | if (mCache) { |
| 138 | free(mCache); |
| 139 | mCache = NULL; |
| 140 | } |
| 141 | |
| 142 | mCachedOffset = 0; |
| 143 | mCachedSize = 0; |
| 144 | } |
| 145 | |
| 146 | status_t MPEG4DataSource::initCheck() const { |
| 147 | return mSource->initCheck(); |
| 148 | } |
| 149 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 150 | ssize_t MPEG4DataSource::readAt(off64_t offset, void *data, size_t size) { |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 151 | Mutex::Autolock autoLock(mLock); |
| 152 | |
| 153 | if (offset >= mCachedOffset |
| 154 | && offset + size <= mCachedOffset + mCachedSize) { |
| 155 | memcpy(data, &mCache[offset - mCachedOffset], size); |
| 156 | return size; |
| 157 | } |
| 158 | |
| 159 | return mSource->readAt(offset, data, size); |
| 160 | } |
| 161 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 162 | status_t MPEG4DataSource::getSize(off64_t *size) { |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 163 | return mSource->getSize(size); |
| 164 | } |
| 165 | |
| 166 | uint32_t MPEG4DataSource::flags() { |
| 167 | return mSource->flags(); |
| 168 | } |
| 169 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 170 | status_t MPEG4DataSource::setCachedRange(off64_t offset, size_t size) { |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 171 | Mutex::Autolock autoLock(mLock); |
| 172 | |
| 173 | clearCache(); |
| 174 | |
| 175 | mCache = (uint8_t *)malloc(size); |
| 176 | |
| 177 | if (mCache == NULL) { |
| 178 | return -ENOMEM; |
| 179 | } |
| 180 | |
| 181 | mCachedOffset = offset; |
| 182 | mCachedSize = size; |
| 183 | |
| 184 | ssize_t err = mSource->readAt(mCachedOffset, mCache, mCachedSize); |
| 185 | |
| 186 | if (err < (ssize_t)size) { |
| 187 | clearCache(); |
| 188 | |
| 189 | return ERROR_IO; |
| 190 | } |
| 191 | |
| 192 | return OK; |
| 193 | } |
| 194 | |
| 195 | //////////////////////////////////////////////////////////////////////////////// |
| 196 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 197 | static void hexdump(const void *_data, size_t size) { |
| 198 | const uint8_t *data = (const uint8_t *)_data; |
| 199 | size_t offset = 0; |
| 200 | while (offset < size) { |
| 201 | printf("0x%04x ", offset); |
| 202 | |
| 203 | size_t n = size - offset; |
| 204 | if (n > 16) { |
| 205 | n = 16; |
| 206 | } |
| 207 | |
| 208 | for (size_t i = 0; i < 16; ++i) { |
| 209 | if (i == 8) { |
| 210 | printf(" "); |
| 211 | } |
| 212 | |
| 213 | if (offset + i < size) { |
| 214 | printf("%02x ", data[offset + i]); |
| 215 | } else { |
| 216 | printf(" "); |
| 217 | } |
| 218 | } |
| 219 | |
| 220 | printf(" "); |
| 221 | |
| 222 | for (size_t i = 0; i < n; ++i) { |
| 223 | if (isprint(data[offset + i])) { |
| 224 | printf("%c", data[offset + i]); |
| 225 | } else { |
| 226 | printf("."); |
| 227 | } |
| 228 | } |
| 229 | |
| 230 | printf("\n"); |
| 231 | |
| 232 | offset += 16; |
| 233 | } |
| 234 | } |
| 235 | |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 236 | static const char *FourCC2MIME(uint32_t fourcc) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 237 | switch (fourcc) { |
| 238 | case FOURCC('m', 'p', '4', 'a'): |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 239 | return MEDIA_MIMETYPE_AUDIO_AAC; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 240 | |
| 241 | case FOURCC('s', 'a', 'm', 'r'): |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 242 | return MEDIA_MIMETYPE_AUDIO_AMR_NB; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 243 | |
Andreas Huber | 2a65117 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 244 | case FOURCC('s', 'a', 'w', 'b'): |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 245 | return MEDIA_MIMETYPE_AUDIO_AMR_WB; |
Andreas Huber | 2a65117 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 246 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 247 | case FOURCC('m', 'p', '4', 'v'): |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 248 | return MEDIA_MIMETYPE_VIDEO_MPEG4; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 249 | |
| 250 | case FOURCC('s', '2', '6', '3'): |
James Dong | 0efdc95 | 2010-12-15 15:49:46 -0800 | [diff] [blame] | 251 | case FOURCC('h', '2', '6', '3'): |
| 252 | case FOURCC('H', '2', '6', '3'): |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 253 | return MEDIA_MIMETYPE_VIDEO_H263; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 254 | |
| 255 | case FOURCC('a', 'v', 'c', '1'): |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 256 | return MEDIA_MIMETYPE_VIDEO_AVC; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 257 | |
| 258 | default: |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 259 | CHECK(!"should not be here."); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 260 | return NULL; |
| 261 | } |
| 262 | } |
| 263 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 264 | MPEG4Extractor::MPEG4Extractor(const sp<DataSource> &source) |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 265 | : mDataSource(source), |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 266 | mInitCheck(NO_INIT), |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 267 | mHasVideo(false), |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 268 | mFirstTrack(NULL), |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 269 | mLastTrack(NULL), |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 270 | mFileMetaData(new MetaData), |
| 271 | mFirstSINF(NULL), |
| 272 | mIsDrm(false) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 273 | } |
| 274 | |
| 275 | MPEG4Extractor::~MPEG4Extractor() { |
| 276 | Track *track = mFirstTrack; |
| 277 | while (track) { |
| 278 | Track *next = track->next; |
| 279 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 280 | delete track; |
| 281 | track = next; |
| 282 | } |
| 283 | mFirstTrack = mLastTrack = NULL; |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 284 | |
| 285 | SINF *sinf = mFirstSINF; |
| 286 | while (sinf) { |
| 287 | SINF *next = sinf->next; |
| 288 | delete sinf->IPMPData; |
| 289 | delete sinf; |
| 290 | sinf = next; |
| 291 | } |
| 292 | mFirstSINF = NULL; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 293 | } |
| 294 | |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 295 | sp<MetaData> MPEG4Extractor::getMetaData() { |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 296 | status_t err; |
| 297 | if ((err = readMetaData()) != OK) { |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 298 | return new MetaData; |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 299 | } |
| 300 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 301 | return mFileMetaData; |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 302 | } |
| 303 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 304 | size_t MPEG4Extractor::countTracks() { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 305 | status_t err; |
| 306 | if ((err = readMetaData()) != OK) { |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 307 | return 0; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 308 | } |
| 309 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 310 | size_t n = 0; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 311 | Track *track = mFirstTrack; |
| 312 | while (track) { |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 313 | ++n; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 314 | track = track->next; |
| 315 | } |
| 316 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 317 | return n; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 318 | } |
| 319 | |
Andreas Huber | e981c33 | 2009-10-22 13:49:30 -0700 | [diff] [blame] | 320 | sp<MetaData> MPEG4Extractor::getTrackMetaData( |
| 321 | size_t index, uint32_t flags) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 322 | status_t err; |
| 323 | if ((err = readMetaData()) != OK) { |
| 324 | return NULL; |
| 325 | } |
| 326 | |
| 327 | Track *track = mFirstTrack; |
| 328 | while (index > 0) { |
| 329 | if (track == NULL) { |
| 330 | return NULL; |
| 331 | } |
| 332 | |
| 333 | track = track->next; |
| 334 | --index; |
| 335 | } |
| 336 | |
Andreas Huber | 2a65117 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 337 | if (track == NULL) { |
| 338 | return NULL; |
| 339 | } |
| 340 | |
Andreas Huber | e981c33 | 2009-10-22 13:49:30 -0700 | [diff] [blame] | 341 | if ((flags & kIncludeExtensiveMetaData) |
| 342 | && !track->includes_expensive_metadata) { |
| 343 | track->includes_expensive_metadata = true; |
| 344 | |
| 345 | const char *mime; |
| 346 | CHECK(track->meta->findCString(kKeyMIMEType, &mime)); |
| 347 | if (!strncasecmp("video/", mime, 6)) { |
| 348 | uint32_t sampleIndex; |
| 349 | uint32_t sampleTime; |
| 350 | if (track->sampleTable->findThumbnailSample(&sampleIndex) == OK |
Andreas Huber | 1faa92a | 2010-01-19 10:39:21 -0800 | [diff] [blame] | 351 | && track->sampleTable->getMetaDataForSample( |
| 352 | sampleIndex, NULL /* offset */, NULL /* size */, |
| 353 | &sampleTime) == OK) { |
Andreas Huber | e981c33 | 2009-10-22 13:49:30 -0700 | [diff] [blame] | 354 | track->meta->setInt64( |
| 355 | kKeyThumbnailTime, |
| 356 | ((int64_t)sampleTime * 1000000) / track->timescale); |
| 357 | } |
| 358 | } |
| 359 | } |
| 360 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 361 | return track->meta; |
| 362 | } |
| 363 | |
| 364 | status_t MPEG4Extractor::readMetaData() { |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 365 | if (mInitCheck != NO_INIT) { |
| 366 | return mInitCheck; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 367 | } |
| 368 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 369 | off64_t offset = 0; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 370 | status_t err; |
| 371 | while ((err = parseChunk(&offset, 0)) == OK) { |
| 372 | } |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 373 | |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 374 | if (mInitCheck == OK) { |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 375 | if (mHasVideo) { |
| 376 | mFileMetaData->setCString(kKeyMIMEType, "video/mp4"); |
| 377 | } else { |
| 378 | mFileMetaData->setCString(kKeyMIMEType, "audio/mp4"); |
| 379 | } |
| 380 | |
Andreas Huber | 44fdac0 | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 381 | mInitCheck = OK; |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 382 | } else { |
| 383 | mInitCheck = err; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 384 | } |
| 385 | |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 386 | CHECK_NE(err, (status_t)NO_INIT); |
| 387 | return mInitCheck; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 388 | } |
| 389 | |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 390 | void MPEG4Extractor::setDrmFlag(bool flag) { |
| 391 | mIsDrm = flag; |
| 392 | } |
| 393 | |
| 394 | char* MPEG4Extractor::getDrmTrackInfo(size_t trackID, int *len) { |
| 395 | if (mFirstSINF == NULL) { |
| 396 | return NULL; |
| 397 | } |
| 398 | |
| 399 | SINF *sinf = mFirstSINF; |
| 400 | while (sinf && (trackID != sinf->trackID)) { |
| 401 | sinf = sinf->next; |
| 402 | } |
| 403 | |
| 404 | if (sinf == NULL) { |
| 405 | return NULL; |
| 406 | } |
| 407 | |
| 408 | *len = sinf->len; |
| 409 | return sinf->IPMPData; |
| 410 | } |
| 411 | |
| 412 | // Reads an encoded integer 7 bits at a time until it encounters the high bit clear. |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 413 | int32_t readSize(off64_t offset, |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 414 | const sp<DataSource> DataSource, uint8_t *numOfBytes) { |
| 415 | uint32_t size = 0; |
| 416 | uint8_t data; |
| 417 | bool moreData = true; |
| 418 | *numOfBytes = 0; |
| 419 | |
| 420 | while (moreData) { |
| 421 | if (DataSource->readAt(offset, &data, 1) < 1) { |
| 422 | return -1; |
| 423 | } |
| 424 | offset ++; |
| 425 | moreData = (data >= 128) ? true : false; |
| 426 | size = (size << 7) | (data & 0x7f); // Take last 7 bits |
| 427 | (*numOfBytes) ++; |
| 428 | } |
| 429 | |
| 430 | return size; |
| 431 | } |
| 432 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 433 | status_t MPEG4Extractor::parseDrmSINF(off64_t *offset, off64_t data_offset) { |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 434 | uint8_t updateIdTag; |
| 435 | if (mDataSource->readAt(data_offset, &updateIdTag, 1) < 1) { |
| 436 | return ERROR_IO; |
| 437 | } |
| 438 | data_offset ++; |
| 439 | |
| 440 | if (0x01/*OBJECT_DESCRIPTOR_UPDATE_ID_TAG*/ != updateIdTag) { |
| 441 | return ERROR_MALFORMED; |
| 442 | } |
| 443 | |
| 444 | uint8_t numOfBytes; |
| 445 | int32_t size = readSize(data_offset, mDataSource, &numOfBytes); |
| 446 | if (size < 0) { |
| 447 | return ERROR_IO; |
| 448 | } |
| 449 | int32_t classSize = size; |
| 450 | data_offset += numOfBytes; |
| 451 | |
| 452 | while(size >= 11 ) { |
| 453 | uint8_t descriptorTag; |
| 454 | if (mDataSource->readAt(data_offset, &descriptorTag, 1) < 1) { |
| 455 | return ERROR_IO; |
| 456 | } |
| 457 | data_offset ++; |
| 458 | |
| 459 | if (0x11/*OBJECT_DESCRIPTOR_ID_TAG*/ != descriptorTag) { |
| 460 | return ERROR_MALFORMED; |
| 461 | } |
| 462 | |
| 463 | uint8_t buffer[8]; |
| 464 | //ObjectDescriptorID and ObjectDescriptor url flag |
| 465 | if (mDataSource->readAt(data_offset, buffer, 2) < 2) { |
| 466 | return ERROR_IO; |
| 467 | } |
| 468 | data_offset += 2; |
| 469 | |
| 470 | if ((buffer[1] >> 5) & 0x0001) { //url flag is set |
| 471 | return ERROR_MALFORMED; |
| 472 | } |
| 473 | |
| 474 | if (mDataSource->readAt(data_offset, buffer, 8) < 8) { |
| 475 | return ERROR_IO; |
| 476 | } |
| 477 | data_offset += 8; |
| 478 | |
| 479 | if ((0x0F/*ES_ID_REF_TAG*/ != buffer[1]) |
| 480 | || ( 0x0A/*IPMP_DESCRIPTOR_POINTER_ID_TAG*/ != buffer[5])) { |
| 481 | return ERROR_MALFORMED; |
| 482 | } |
| 483 | |
| 484 | SINF *sinf = new SINF; |
| 485 | sinf->trackID = U16_AT(&buffer[3]); |
| 486 | sinf->IPMPDescriptorID = buffer[7]; |
| 487 | sinf->next = mFirstSINF; |
| 488 | mFirstSINF = sinf; |
| 489 | |
| 490 | size -= (8 + 2 + 1); |
| 491 | } |
| 492 | |
| 493 | if (size != 0) { |
| 494 | return ERROR_MALFORMED; |
| 495 | } |
| 496 | |
| 497 | if (mDataSource->readAt(data_offset, &updateIdTag, 1) < 1) { |
| 498 | return ERROR_IO; |
| 499 | } |
| 500 | data_offset ++; |
| 501 | |
| 502 | if(0x05/*IPMP_DESCRIPTOR_UPDATE_ID_TAG*/ != updateIdTag) { |
| 503 | return ERROR_MALFORMED; |
| 504 | } |
| 505 | |
| 506 | size = readSize(data_offset, mDataSource, &numOfBytes); |
| 507 | if (size < 0) { |
| 508 | return ERROR_IO; |
| 509 | } |
| 510 | classSize = size; |
| 511 | data_offset += numOfBytes; |
| 512 | |
| 513 | while (size > 0) { |
| 514 | uint8_t tag; |
| 515 | int32_t dataLen; |
| 516 | if (mDataSource->readAt(data_offset, &tag, 1) < 1) { |
| 517 | return ERROR_IO; |
| 518 | } |
| 519 | data_offset ++; |
| 520 | |
| 521 | if (0x0B/*IPMP_DESCRIPTOR_ID_TAG*/ == tag) { |
| 522 | uint8_t id; |
| 523 | dataLen = readSize(data_offset, mDataSource, &numOfBytes); |
| 524 | if (dataLen < 0) { |
| 525 | return ERROR_IO; |
| 526 | } else if (dataLen < 4) { |
| 527 | return ERROR_MALFORMED; |
| 528 | } |
| 529 | data_offset += numOfBytes; |
| 530 | |
| 531 | if (mDataSource->readAt(data_offset, &id, 1) < 1) { |
| 532 | return ERROR_IO; |
| 533 | } |
| 534 | data_offset ++; |
| 535 | |
| 536 | SINF *sinf = mFirstSINF; |
| 537 | while (sinf && (sinf->IPMPDescriptorID != id)) { |
| 538 | sinf = sinf->next; |
| 539 | } |
| 540 | if (sinf == NULL) { |
| 541 | return ERROR_MALFORMED; |
| 542 | } |
| 543 | sinf->len = dataLen - 3; |
| 544 | sinf->IPMPData = new char[sinf->len]; |
| 545 | |
| 546 | if (mDataSource->readAt(data_offset + 2, sinf->IPMPData, sinf->len) < sinf->len) { |
| 547 | return ERROR_IO; |
| 548 | } |
| 549 | data_offset += sinf->len; |
| 550 | |
| 551 | size -= (dataLen + numOfBytes + 1); |
| 552 | } |
| 553 | } |
| 554 | |
| 555 | if (size != 0) { |
| 556 | return ERROR_MALFORMED; |
| 557 | } |
| 558 | |
| 559 | return UNKNOWN_ERROR; // Return a dummy error. |
| 560 | } |
| 561 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 562 | static void MakeFourCCString(uint32_t x, char *s) { |
| 563 | s[0] = x >> 24; |
| 564 | s[1] = (x >> 16) & 0xff; |
| 565 | s[2] = (x >> 8) & 0xff; |
| 566 | s[3] = x & 0xff; |
| 567 | s[4] = '\0'; |
| 568 | } |
| 569 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 570 | struct PathAdder { |
| 571 | PathAdder(Vector<uint32_t> *path, uint32_t chunkType) |
| 572 | : mPath(path) { |
| 573 | mPath->push(chunkType); |
| 574 | } |
| 575 | |
| 576 | ~PathAdder() { |
| 577 | mPath->pop(); |
| 578 | } |
| 579 | |
| 580 | private: |
| 581 | Vector<uint32_t> *mPath; |
| 582 | |
| 583 | PathAdder(const PathAdder &); |
| 584 | PathAdder &operator=(const PathAdder &); |
| 585 | }; |
| 586 | |
| 587 | static bool underMetaDataPath(const Vector<uint32_t> &path) { |
| 588 | return path.size() >= 5 |
| 589 | && path[0] == FOURCC('m', 'o', 'o', 'v') |
| 590 | && path[1] == FOURCC('u', 'd', 't', 'a') |
| 591 | && path[2] == FOURCC('m', 'e', 't', 'a') |
| 592 | && path[3] == FOURCC('i', 'l', 's', 't'); |
| 593 | } |
| 594 | |
| 595 | // Given a time in seconds since Jan 1 1904, produce a human-readable string. |
| 596 | static void convertTimeToDate(int64_t time_1904, String8 *s) { |
| 597 | time_t time_1970 = time_1904 - (((66 * 365 + 17) * 24) * 3600); |
| 598 | |
| 599 | char tmp[32]; |
| 600 | strftime(tmp, sizeof(tmp), "%Y%m%dT%H%M%S.000Z", gmtime(&time_1970)); |
| 601 | |
| 602 | s->setTo(tmp); |
| 603 | } |
| 604 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 605 | status_t MPEG4Extractor::parseChunk(off64_t *offset, int depth) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 606 | uint32_t hdr[2]; |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 607 | if (mDataSource->readAt(*offset, hdr, 8) < 8) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 608 | return ERROR_IO; |
| 609 | } |
| 610 | uint64_t chunk_size = ntohl(hdr[0]); |
| 611 | uint32_t chunk_type = ntohl(hdr[1]); |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 612 | off64_t data_offset = *offset + 8; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 613 | |
| 614 | if (chunk_size == 1) { |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 615 | if (mDataSource->readAt(*offset + 8, &chunk_size, 8) < 8) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 616 | return ERROR_IO; |
| 617 | } |
| 618 | chunk_size = ntoh64(chunk_size); |
| 619 | data_offset += 8; |
Andreas Huber | 736c22d | 2010-06-24 12:16:25 -0700 | [diff] [blame] | 620 | |
| 621 | if (chunk_size < 16) { |
| 622 | // The smallest valid chunk is 16 bytes long in this case. |
| 623 | return ERROR_MALFORMED; |
| 624 | } |
| 625 | } else if (chunk_size < 8) { |
| 626 | // The smallest valid chunk is 8 bytes long. |
| 627 | return ERROR_MALFORMED; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 628 | } |
| 629 | |
| 630 | char chunk[5]; |
| 631 | MakeFourCCString(chunk_type, chunk); |
| 632 | |
| 633 | #if 0 |
| 634 | static const char kWhitespace[] = " "; |
| 635 | const char *indent = &kWhitespace[sizeof(kWhitespace) - 1 - 2 * depth]; |
| 636 | printf("%sfound chunk '%s' of size %lld\n", indent, chunk, chunk_size); |
| 637 | |
| 638 | char buffer[256]; |
Andreas Huber | dfb8eee | 2010-02-25 15:59:24 -0800 | [diff] [blame] | 639 | size_t n = chunk_size; |
| 640 | if (n > sizeof(buffer)) { |
| 641 | n = sizeof(buffer); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 642 | } |
Andreas Huber | dfb8eee | 2010-02-25 15:59:24 -0800 | [diff] [blame] | 643 | if (mDataSource->readAt(*offset, buffer, n) |
| 644 | < (ssize_t)n) { |
| 645 | return ERROR_IO; |
| 646 | } |
| 647 | |
| 648 | hexdump(buffer, n); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 649 | #endif |
| 650 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 651 | PathAdder autoAdder(&mPath, chunk_type); |
| 652 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 653 | off64_t chunk_data_size = *offset + chunk_size - data_offset; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 654 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 655 | if (chunk_type != FOURCC('c', 'p', 'r', 't') |
| 656 | && mPath.size() == 5 && underMetaDataPath(mPath)) { |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 657 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 658 | *offset = data_offset; |
| 659 | while (*offset < stop_offset) { |
| 660 | status_t err = parseChunk(offset, depth + 1); |
| 661 | if (err != OK) { |
| 662 | return err; |
| 663 | } |
| 664 | } |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 665 | |
| 666 | if (*offset != stop_offset) { |
| 667 | return ERROR_MALFORMED; |
| 668 | } |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 669 | |
| 670 | return OK; |
| 671 | } |
| 672 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 673 | switch(chunk_type) { |
| 674 | case FOURCC('m', 'o', 'o', 'v'): |
| 675 | case FOURCC('t', 'r', 'a', 'k'): |
| 676 | case FOURCC('m', 'd', 'i', 'a'): |
| 677 | case FOURCC('m', 'i', 'n', 'f'): |
| 678 | case FOURCC('d', 'i', 'n', 'f'): |
| 679 | case FOURCC('s', 't', 'b', 'l'): |
| 680 | case FOURCC('m', 'v', 'e', 'x'): |
| 681 | case FOURCC('m', 'o', 'o', 'f'): |
| 682 | case FOURCC('t', 'r', 'a', 'f'): |
| 683 | case FOURCC('m', 'f', 'r', 'a'): |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 684 | case FOURCC('u', 'd', 't', 'a'): |
| 685 | case FOURCC('i', 'l', 's', 't'): |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 686 | { |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 687 | if (chunk_type == FOURCC('s', 't', 'b', 'l')) { |
| 688 | LOGV("sampleTable chunk is %d bytes long.", (size_t)chunk_size); |
| 689 | |
Andreas Huber | 6da2ae1 | 2010-10-15 08:38:49 -0700 | [diff] [blame] | 690 | if (mDataSource->flags() |
| 691 | & (DataSource::kWantsPrefetching |
| 692 | | DataSource::kIsCachingDataSource)) { |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 693 | sp<MPEG4DataSource> cachedSource = |
| 694 | new MPEG4DataSource(mDataSource); |
| 695 | |
| 696 | if (cachedSource->setCachedRange(*offset, chunk_size) == OK) { |
| 697 | mDataSource = cachedSource; |
| 698 | } |
| 699 | } |
Andreas Huber | eb9128f | 2010-05-14 15:28:51 -0700 | [diff] [blame] | 700 | |
| 701 | mLastTrack->sampleTable = new SampleTable(mDataSource); |
Andreas Huber | affa99c | 2010-01-28 14:27:37 -0800 | [diff] [blame] | 702 | } |
| 703 | |
Andreas Huber | 4d60fc5 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 704 | bool isTrack = false; |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 705 | if (chunk_type == FOURCC('t', 'r', 'a', 'k')) { |
Andreas Huber | 4d60fc5 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 706 | isTrack = true; |
| 707 | |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 708 | Track *track = new Track; |
| 709 | track->next = NULL; |
| 710 | if (mLastTrack) { |
| 711 | mLastTrack->next = track; |
| 712 | } else { |
| 713 | mFirstTrack = track; |
| 714 | } |
| 715 | mLastTrack = track; |
| 716 | |
| 717 | track->meta = new MetaData; |
| 718 | track->includes_expensive_metadata = false; |
Andreas Huber | 4d60fc5 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 719 | track->skipTrack = false; |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 720 | track->timescale = 0; |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 721 | track->meta->setCString(kKeyMIMEType, "application/octet-stream"); |
| 722 | } |
| 723 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 724 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 725 | *offset = data_offset; |
| 726 | while (*offset < stop_offset) { |
| 727 | status_t err = parseChunk(offset, depth + 1); |
| 728 | if (err != OK) { |
| 729 | return err; |
| 730 | } |
| 731 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 732 | |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 733 | if (*offset != stop_offset) { |
| 734 | return ERROR_MALFORMED; |
| 735 | } |
| 736 | |
Andreas Huber | 4d60fc5 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 737 | if (isTrack) { |
| 738 | if (mLastTrack->skipTrack) { |
| 739 | Track *cur = mFirstTrack; |
| 740 | |
| 741 | if (cur == mLastTrack) { |
| 742 | delete cur; |
| 743 | mFirstTrack = mLastTrack = NULL; |
| 744 | } else { |
| 745 | while (cur && cur->next != mLastTrack) { |
| 746 | cur = cur->next; |
| 747 | } |
| 748 | cur->next = NULL; |
| 749 | delete mLastTrack; |
| 750 | mLastTrack = cur; |
| 751 | } |
| 752 | |
| 753 | return OK; |
| 754 | } |
| 755 | |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 756 | status_t err = verifyTrack(mLastTrack); |
| 757 | |
| 758 | if (err != OK) { |
| 759 | return err; |
| 760 | } |
| 761 | } else if (chunk_type == FOURCC('m', 'o', 'o', 'v')) { |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 762 | mInitCheck = OK; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 763 | |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 764 | if (!mIsDrm) { |
| 765 | return UNKNOWN_ERROR; // Return a dummy error. |
| 766 | } else { |
| 767 | return OK; |
| 768 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 769 | } |
| 770 | break; |
| 771 | } |
| 772 | |
| 773 | case FOURCC('t', 'k', 'h', 'd'): |
| 774 | { |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 775 | status_t err; |
| 776 | if ((err = parseTrackHeader(data_offset, chunk_data_size)) != OK) { |
| 777 | return err; |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 778 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 779 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 780 | *offset += chunk_size; |
| 781 | break; |
| 782 | } |
| 783 | |
| 784 | case FOURCC('m', 'd', 'h', 'd'): |
| 785 | { |
| 786 | if (chunk_data_size < 4) { |
| 787 | return ERROR_MALFORMED; |
| 788 | } |
| 789 | |
| 790 | uint8_t version; |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 791 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 792 | data_offset, &version, sizeof(version)) |
| 793 | < (ssize_t)sizeof(version)) { |
| 794 | return ERROR_IO; |
| 795 | } |
| 796 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 797 | off64_t timescale_offset; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 798 | |
| 799 | if (version == 1) { |
| 800 | timescale_offset = data_offset + 4 + 16; |
| 801 | } else if (version == 0) { |
| 802 | timescale_offset = data_offset + 4 + 8; |
| 803 | } else { |
| 804 | return ERROR_IO; |
| 805 | } |
| 806 | |
| 807 | uint32_t timescale; |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 808 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 809 | timescale_offset, ×cale, sizeof(timescale)) |
| 810 | < (ssize_t)sizeof(timescale)) { |
| 811 | return ERROR_IO; |
| 812 | } |
| 813 | |
| 814 | mLastTrack->timescale = ntohl(timescale); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 815 | |
| 816 | int64_t duration; |
| 817 | if (version == 1) { |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 818 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 819 | timescale_offset + 4, &duration, sizeof(duration)) |
| 820 | < (ssize_t)sizeof(duration)) { |
| 821 | return ERROR_IO; |
| 822 | } |
| 823 | duration = ntoh64(duration); |
| 824 | } else { |
| 825 | int32_t duration32; |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 826 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 827 | timescale_offset + 4, &duration32, sizeof(duration32)) |
| 828 | < (ssize_t)sizeof(duration32)) { |
| 829 | return ERROR_IO; |
| 830 | } |
| 831 | duration = ntohl(duration32); |
| 832 | } |
Andreas Huber | fa8de75 | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 833 | mLastTrack->meta->setInt64( |
| 834 | kKeyDuration, (duration * 1000000) / mLastTrack->timescale); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 835 | |
Gloria Wang | c6091dd | 2011-05-03 15:59:03 -0700 | [diff] [blame] | 836 | uint8_t lang[2]; |
| 837 | off64_t lang_offset; |
| 838 | if (version == 1) { |
| 839 | lang_offset = timescale_offset + 4 + 8; |
| 840 | } else if (version == 0) { |
| 841 | lang_offset = timescale_offset + 4 + 4; |
| 842 | } else { |
| 843 | return ERROR_IO; |
| 844 | } |
| 845 | |
| 846 | if (mDataSource->readAt(lang_offset, &lang, sizeof(lang)) |
| 847 | < (ssize_t)sizeof(lang)) { |
| 848 | return ERROR_IO; |
| 849 | } |
| 850 | |
| 851 | // To get the ISO-639-2/T three character language code |
| 852 | // 1 bit pad followed by 3 5-bits characters. Each character |
| 853 | // is packed as the difference between its ASCII value and 0x60. |
| 854 | char lang_code[4]; |
| 855 | lang_code[0] = ((lang[0] >> 2) & 0x1f) + 0x60; |
| 856 | lang_code[1] = ((lang[0] & 0x3) << 3 | (lang[1] >> 5)) + 0x60; |
| 857 | lang_code[2] = (lang[1] & 0x1f) + 0x60; |
| 858 | lang_code[3] = '\0'; |
| 859 | |
| 860 | mLastTrack->meta->setCString( |
| 861 | kKeyMediaLanguage, lang_code); |
| 862 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 863 | *offset += chunk_size; |
| 864 | break; |
| 865 | } |
| 866 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 867 | case FOURCC('s', 't', 's', 'd'): |
| 868 | { |
| 869 | if (chunk_data_size < 8) { |
| 870 | return ERROR_MALFORMED; |
| 871 | } |
| 872 | |
| 873 | uint8_t buffer[8]; |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 874 | if (chunk_data_size < (off64_t)sizeof(buffer)) { |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 875 | return ERROR_MALFORMED; |
| 876 | } |
| 877 | |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 878 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 879 | data_offset, buffer, 8) < 8) { |
| 880 | return ERROR_IO; |
| 881 | } |
| 882 | |
| 883 | if (U32_AT(buffer) != 0) { |
| 884 | // Should be version 0, flags 0. |
| 885 | return ERROR_MALFORMED; |
| 886 | } |
| 887 | |
| 888 | uint32_t entry_count = U32_AT(&buffer[4]); |
| 889 | |
| 890 | if (entry_count > 1) { |
| 891 | // For now we only support a single type of media per track. |
Andreas Huber | 4d60fc5 | 2010-03-12 16:15:53 -0800 | [diff] [blame] | 892 | |
| 893 | mLastTrack->skipTrack = true; |
| 894 | *offset += chunk_size; |
| 895 | break; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 896 | } |
| 897 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 898 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 899 | *offset = data_offset + 8; |
| 900 | for (uint32_t i = 0; i < entry_count; ++i) { |
| 901 | status_t err = parseChunk(offset, depth + 1); |
| 902 | if (err != OK) { |
| 903 | return err; |
| 904 | } |
| 905 | } |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 906 | |
| 907 | if (*offset != stop_offset) { |
| 908 | return ERROR_MALFORMED; |
| 909 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 910 | break; |
| 911 | } |
| 912 | |
| 913 | case FOURCC('m', 'p', '4', 'a'): |
| 914 | case FOURCC('s', 'a', 'm', 'r'): |
Andreas Huber | 2a65117 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 915 | case FOURCC('s', 'a', 'w', 'b'): |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 916 | { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 917 | uint8_t buffer[8 + 20]; |
| 918 | if (chunk_data_size < (ssize_t)sizeof(buffer)) { |
| 919 | // Basic AudioSampleEntry size. |
| 920 | return ERROR_MALFORMED; |
| 921 | } |
| 922 | |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 923 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 924 | data_offset, buffer, sizeof(buffer)) < (ssize_t)sizeof(buffer)) { |
| 925 | return ERROR_IO; |
| 926 | } |
| 927 | |
| 928 | uint16_t data_ref_index = U16_AT(&buffer[6]); |
| 929 | uint16_t num_channels = U16_AT(&buffer[16]); |
| 930 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 931 | uint16_t sample_size = U16_AT(&buffer[18]); |
| 932 | uint32_t sample_rate = U32_AT(&buffer[24]) >> 16; |
| 933 | |
Andreas Huber | d0332ad | 2010-04-12 16:05:57 -0700 | [diff] [blame] | 934 | if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_NB, |
| 935 | FourCC2MIME(chunk_type))) { |
| 936 | // AMR NB audio is always mono, 8kHz |
| 937 | num_channels = 1; |
| 938 | sample_rate = 8000; |
| 939 | } else if (!strcasecmp(MEDIA_MIMETYPE_AUDIO_AMR_WB, |
| 940 | FourCC2MIME(chunk_type))) { |
| 941 | // AMR WB audio is always mono, 16kHz |
| 942 | num_channels = 1; |
| 943 | sample_rate = 16000; |
| 944 | } |
| 945 | |
| 946 | #if 0 |
| 947 | printf("*** coding='%s' %d channels, size %d, rate %d\n", |
| 948 | chunk, num_channels, sample_size, sample_rate); |
| 949 | #endif |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 950 | |
| 951 | mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type)); |
| 952 | mLastTrack->meta->setInt32(kKeyChannelCount, num_channels); |
| 953 | mLastTrack->meta->setInt32(kKeySampleRate, sample_rate); |
| 954 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 955 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 956 | *offset = data_offset + sizeof(buffer); |
| 957 | while (*offset < stop_offset) { |
| 958 | status_t err = parseChunk(offset, depth + 1); |
| 959 | if (err != OK) { |
| 960 | return err; |
| 961 | } |
| 962 | } |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 963 | |
| 964 | if (*offset != stop_offset) { |
| 965 | return ERROR_MALFORMED; |
| 966 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 967 | break; |
| 968 | } |
| 969 | |
| 970 | case FOURCC('m', 'p', '4', 'v'): |
| 971 | case FOURCC('s', '2', '6', '3'): |
James Dong | 0efdc95 | 2010-12-15 15:49:46 -0800 | [diff] [blame] | 972 | case FOURCC('H', '2', '6', '3'): |
| 973 | case FOURCC('h', '2', '6', '3'): |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 974 | case FOURCC('a', 'v', 'c', '1'): |
| 975 | { |
Andreas Huber | 1cb02bf | 2010-01-13 11:25:10 -0800 | [diff] [blame] | 976 | mHasVideo = true; |
| 977 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 978 | uint8_t buffer[78]; |
| 979 | if (chunk_data_size < (ssize_t)sizeof(buffer)) { |
| 980 | // Basic VideoSampleEntry size. |
| 981 | return ERROR_MALFORMED; |
| 982 | } |
| 983 | |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 984 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 985 | data_offset, buffer, sizeof(buffer)) < (ssize_t)sizeof(buffer)) { |
| 986 | return ERROR_IO; |
| 987 | } |
| 988 | |
| 989 | uint16_t data_ref_index = U16_AT(&buffer[6]); |
| 990 | uint16_t width = U16_AT(&buffer[6 + 18]); |
| 991 | uint16_t height = U16_AT(&buffer[6 + 20]); |
| 992 | |
James Dong | c9e1c80 | 2010-12-15 17:32:45 -0800 | [diff] [blame] | 993 | // The video sample is not stand-compliant if it has invalid dimension. |
| 994 | // Use some default width and height value, and |
| 995 | // let the decoder figure out the actual width and height (and thus |
| 996 | // be prepared for INFO_FOMRAT_CHANGED event). |
| 997 | if (width == 0) width = 352; |
| 998 | if (height == 0) height = 288; |
| 999 | |
Andreas Huber | 2ea14e2 | 2009-12-16 09:30:55 -0800 | [diff] [blame] | 1000 | // printf("*** coding='%s' width=%d height=%d\n", |
| 1001 | // chunk, width, height); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1002 | |
| 1003 | mLastTrack->meta->setCString(kKeyMIMEType, FourCC2MIME(chunk_type)); |
| 1004 | mLastTrack->meta->setInt32(kKeyWidth, width); |
| 1005 | mLastTrack->meta->setInt32(kKeyHeight, height); |
| 1006 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1007 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1008 | *offset = data_offset + sizeof(buffer); |
| 1009 | while (*offset < stop_offset) { |
| 1010 | status_t err = parseChunk(offset, depth + 1); |
| 1011 | if (err != OK) { |
| 1012 | return err; |
| 1013 | } |
| 1014 | } |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1015 | |
| 1016 | if (*offset != stop_offset) { |
| 1017 | return ERROR_MALFORMED; |
| 1018 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1019 | break; |
| 1020 | } |
| 1021 | |
| 1022 | case FOURCC('s', 't', 'c', 'o'): |
| 1023 | case FOURCC('c', 'o', '6', '4'): |
| 1024 | { |
| 1025 | status_t err = |
| 1026 | mLastTrack->sampleTable->setChunkOffsetParams( |
| 1027 | chunk_type, data_offset, chunk_data_size); |
| 1028 | |
| 1029 | if (err != OK) { |
| 1030 | return err; |
| 1031 | } |
| 1032 | |
| 1033 | *offset += chunk_size; |
| 1034 | break; |
| 1035 | } |
| 1036 | |
| 1037 | case FOURCC('s', 't', 's', 'c'): |
| 1038 | { |
| 1039 | status_t err = |
| 1040 | mLastTrack->sampleTable->setSampleToChunkParams( |
| 1041 | data_offset, chunk_data_size); |
| 1042 | |
| 1043 | if (err != OK) { |
| 1044 | return err; |
| 1045 | } |
| 1046 | |
| 1047 | *offset += chunk_size; |
| 1048 | break; |
| 1049 | } |
| 1050 | |
| 1051 | case FOURCC('s', 't', 's', 'z'): |
| 1052 | case FOURCC('s', 't', 'z', '2'): |
| 1053 | { |
| 1054 | status_t err = |
| 1055 | mLastTrack->sampleTable->setSampleSizeParams( |
| 1056 | chunk_type, data_offset, chunk_data_size); |
| 1057 | |
| 1058 | if (err != OK) { |
| 1059 | return err; |
| 1060 | } |
| 1061 | |
Andreas Huber | 1bceff9 | 2009-11-23 14:03:32 -0800 | [diff] [blame] | 1062 | size_t max_size; |
Andreas Huber | d7f2225 | 2010-09-09 10:10:15 -0700 | [diff] [blame] | 1063 | err = mLastTrack->sampleTable->getMaxSampleSize(&max_size); |
| 1064 | |
| 1065 | if (err != OK) { |
| 1066 | return err; |
| 1067 | } |
Andreas Huber | 1bceff9 | 2009-11-23 14:03:32 -0800 | [diff] [blame] | 1068 | |
| 1069 | // Assume that a given buffer only contains at most 10 fragments, |
| 1070 | // each fragment originally prefixed with a 2 byte length will |
| 1071 | // have a 4 byte header (0x00 0x00 0x00 0x01) after conversion, |
| 1072 | // and thus will grow by 2 bytes per fragment. |
| 1073 | mLastTrack->meta->setInt32(kKeyMaxInputSize, max_size + 10 * 2); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1074 | *offset += chunk_size; |
James Dong | cbb488d | 2011-01-19 00:13:55 -0800 | [diff] [blame] | 1075 | |
| 1076 | // Calculate average frame rate. |
| 1077 | const char *mime; |
| 1078 | CHECK(mLastTrack->meta->findCString(kKeyMIMEType, &mime)); |
| 1079 | if (!strncasecmp("video/", mime, 6)) { |
| 1080 | size_t nSamples = mLastTrack->sampleTable->countSamples(); |
| 1081 | int64_t durationUs; |
| 1082 | if (mLastTrack->meta->findInt64(kKeyDuration, &durationUs)) { |
| 1083 | if (durationUs > 0) { |
| 1084 | int32_t frameRate = (nSamples * 1000000LL + |
| 1085 | (durationUs >> 1)) / durationUs; |
| 1086 | mLastTrack->meta->setInt32(kKeyFrameRate, frameRate); |
| 1087 | } |
| 1088 | } |
| 1089 | } |
| 1090 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1091 | break; |
| 1092 | } |
| 1093 | |
| 1094 | case FOURCC('s', 't', 't', 's'): |
| 1095 | { |
| 1096 | status_t err = |
| 1097 | mLastTrack->sampleTable->setTimeToSampleParams( |
| 1098 | data_offset, chunk_data_size); |
| 1099 | |
| 1100 | if (err != OK) { |
| 1101 | return err; |
| 1102 | } |
| 1103 | |
| 1104 | *offset += chunk_size; |
| 1105 | break; |
| 1106 | } |
| 1107 | |
Andreas Huber | bd352c3 | 2011-02-03 13:18:16 -0800 | [diff] [blame] | 1108 | case FOURCC('c', 't', 't', 's'): |
| 1109 | { |
| 1110 | status_t err = |
| 1111 | mLastTrack->sampleTable->setCompositionTimeToSampleParams( |
| 1112 | data_offset, chunk_data_size); |
| 1113 | |
| 1114 | if (err != OK) { |
| 1115 | return err; |
| 1116 | } |
| 1117 | |
| 1118 | *offset += chunk_size; |
| 1119 | break; |
| 1120 | } |
| 1121 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1122 | case FOURCC('s', 't', 's', 's'): |
| 1123 | { |
| 1124 | status_t err = |
| 1125 | mLastTrack->sampleTable->setSyncSampleParams( |
| 1126 | data_offset, chunk_data_size); |
| 1127 | |
| 1128 | if (err != OK) { |
| 1129 | return err; |
| 1130 | } |
| 1131 | |
| 1132 | *offset += chunk_size; |
| 1133 | break; |
| 1134 | } |
| 1135 | |
| 1136 | case FOURCC('e', 's', 'd', 's'): |
| 1137 | { |
| 1138 | if (chunk_data_size < 4) { |
| 1139 | return ERROR_MALFORMED; |
| 1140 | } |
| 1141 | |
| 1142 | uint8_t buffer[256]; |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1143 | if (chunk_data_size > (off64_t)sizeof(buffer)) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1144 | return ERROR_BUFFER_TOO_SMALL; |
| 1145 | } |
| 1146 | |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1147 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1148 | data_offset, buffer, chunk_data_size) < chunk_data_size) { |
| 1149 | return ERROR_IO; |
| 1150 | } |
| 1151 | |
| 1152 | if (U32_AT(buffer) != 0) { |
| 1153 | // Should be version 0, flags 0. |
| 1154 | return ERROR_MALFORMED; |
| 1155 | } |
| 1156 | |
| 1157 | mLastTrack->meta->setData( |
| 1158 | kKeyESDS, kTypeESDS, &buffer[4], chunk_data_size - 4); |
| 1159 | |
Andreas Huber | d231596 | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 1160 | if (mPath.size() >= 2 |
| 1161 | && mPath[mPath.size() - 2] == FOURCC('m', 'p', '4', 'a')) { |
| 1162 | // Information from the ESDS must be relied on for proper |
| 1163 | // setup of sample rate and channel count for MPEG4 Audio. |
| 1164 | // The generic header appears to only contain generic |
| 1165 | // information... |
| 1166 | |
| 1167 | status_t err = updateAudioTrackInfoFromESDS_MPEG4Audio( |
| 1168 | &buffer[4], chunk_data_size - 4); |
| 1169 | |
| 1170 | if (err != OK) { |
| 1171 | return err; |
| 1172 | } |
| 1173 | } |
| 1174 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1175 | *offset += chunk_size; |
| 1176 | break; |
| 1177 | } |
| 1178 | |
| 1179 | case FOURCC('a', 'v', 'c', 'C'): |
| 1180 | { |
| 1181 | char buffer[256]; |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1182 | if (chunk_data_size > (off64_t)sizeof(buffer)) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1183 | return ERROR_BUFFER_TOO_SMALL; |
| 1184 | } |
| 1185 | |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1186 | if (mDataSource->readAt( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1187 | data_offset, buffer, chunk_data_size) < chunk_data_size) { |
| 1188 | return ERROR_IO; |
| 1189 | } |
| 1190 | |
| 1191 | mLastTrack->meta->setData( |
| 1192 | kKeyAVCC, kTypeAVCC, buffer, chunk_data_size); |
| 1193 | |
| 1194 | *offset += chunk_size; |
| 1195 | break; |
| 1196 | } |
| 1197 | |
James Dong | fe84cf1 | 2011-02-11 15:21:45 -0800 | [diff] [blame] | 1198 | case FOURCC('d', '2', '6', '3'): |
| 1199 | { |
James Dong | bc5f1f5 | 2011-02-23 17:07:49 -0800 | [diff] [blame] | 1200 | /* |
| 1201 | * d263 contains a fixed 7 bytes part: |
| 1202 | * vendor - 4 bytes |
| 1203 | * version - 1 byte |
| 1204 | * level - 1 byte |
| 1205 | * profile - 1 byte |
| 1206 | * optionally, "d263" box itself may contain a 16-byte |
| 1207 | * bit rate box (bitr) |
| 1208 | * average bit rate - 4 bytes |
| 1209 | * max bit rate - 4 bytes |
| 1210 | */ |
| 1211 | char buffer[23]; |
| 1212 | if (chunk_data_size != 7 && |
| 1213 | chunk_data_size != 23) { |
James Dong | fe84cf1 | 2011-02-11 15:21:45 -0800 | [diff] [blame] | 1214 | LOGE("Incorrect D263 box size %lld", chunk_data_size); |
| 1215 | return ERROR_MALFORMED; |
| 1216 | } |
| 1217 | |
| 1218 | if (mDataSource->readAt( |
| 1219 | data_offset, buffer, chunk_data_size) < chunk_data_size) { |
| 1220 | return ERROR_IO; |
| 1221 | } |
| 1222 | |
| 1223 | mLastTrack->meta->setData(kKeyD263, kTypeD263, buffer, chunk_data_size); |
| 1224 | |
| 1225 | *offset += chunk_size; |
| 1226 | break; |
| 1227 | } |
| 1228 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1229 | case FOURCC('m', 'e', 't', 'a'): |
| 1230 | { |
| 1231 | uint8_t buffer[4]; |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1232 | if (chunk_data_size < (off64_t)sizeof(buffer)) { |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1233 | return ERROR_MALFORMED; |
| 1234 | } |
| 1235 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1236 | if (mDataSource->readAt( |
| 1237 | data_offset, buffer, 4) < 4) { |
| 1238 | return ERROR_IO; |
| 1239 | } |
| 1240 | |
| 1241 | if (U32_AT(buffer) != 0) { |
| 1242 | // Should be version 0, flags 0. |
Andreas Huber | dfb8eee | 2010-02-25 15:59:24 -0800 | [diff] [blame] | 1243 | |
| 1244 | // If it's not, let's assume this is one of those |
| 1245 | // apparently malformed chunks that don't have flags |
| 1246 | // and completely different semantics than what's |
| 1247 | // in the MPEG4 specs and skip it. |
| 1248 | *offset += chunk_size; |
| 1249 | return OK; |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1250 | } |
| 1251 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1252 | off64_t stop_offset = *offset + chunk_size; |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1253 | *offset = data_offset + sizeof(buffer); |
| 1254 | while (*offset < stop_offset) { |
| 1255 | status_t err = parseChunk(offset, depth + 1); |
| 1256 | if (err != OK) { |
| 1257 | return err; |
| 1258 | } |
| 1259 | } |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1260 | |
| 1261 | if (*offset != stop_offset) { |
| 1262 | return ERROR_MALFORMED; |
| 1263 | } |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1264 | break; |
| 1265 | } |
| 1266 | |
| 1267 | case FOURCC('d', 'a', 't', 'a'): |
| 1268 | { |
| 1269 | if (mPath.size() == 6 && underMetaDataPath(mPath)) { |
| 1270 | status_t err = parseMetaData(data_offset, chunk_data_size); |
| 1271 | |
| 1272 | if (err != OK) { |
| 1273 | return err; |
| 1274 | } |
| 1275 | } |
| 1276 | |
| 1277 | *offset += chunk_size; |
| 1278 | break; |
| 1279 | } |
| 1280 | |
| 1281 | case FOURCC('m', 'v', 'h', 'd'): |
| 1282 | { |
| 1283 | if (chunk_data_size < 12) { |
| 1284 | return ERROR_MALFORMED; |
| 1285 | } |
| 1286 | |
| 1287 | uint8_t header[12]; |
| 1288 | if (mDataSource->readAt( |
| 1289 | data_offset, header, sizeof(header)) |
| 1290 | < (ssize_t)sizeof(header)) { |
| 1291 | return ERROR_IO; |
| 1292 | } |
| 1293 | |
| 1294 | int64_t creationTime; |
| 1295 | if (header[0] == 1) { |
| 1296 | creationTime = U64_AT(&header[4]); |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1297 | } else if (header[0] != 0) { |
| 1298 | return ERROR_MALFORMED; |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1299 | } else { |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1300 | creationTime = U32_AT(&header[4]); |
| 1301 | } |
| 1302 | |
| 1303 | String8 s; |
| 1304 | convertTimeToDate(creationTime, &s); |
| 1305 | |
| 1306 | mFileMetaData->setCString(kKeyDate, s.string()); |
| 1307 | |
| 1308 | *offset += chunk_size; |
| 1309 | break; |
| 1310 | } |
| 1311 | |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 1312 | case FOURCC('m', 'd', 'a', 't'): |
| 1313 | { |
| 1314 | if (!mIsDrm) { |
| 1315 | *offset += chunk_size; |
| 1316 | break; |
| 1317 | } |
| 1318 | |
| 1319 | if (chunk_size < 8) { |
| 1320 | return ERROR_MALFORMED; |
| 1321 | } |
| 1322 | |
| 1323 | return parseDrmSINF(offset, data_offset); |
| 1324 | } |
| 1325 | |
Gloria Wang | c6091dd | 2011-05-03 15:59:03 -0700 | [diff] [blame] | 1326 | case FOURCC('t', 'x', '3', 'g'): |
| 1327 | { |
| 1328 | mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_TEXT_3GPP); |
| 1329 | |
| 1330 | *offset += chunk_size; |
| 1331 | break; |
| 1332 | } |
| 1333 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1334 | default: |
| 1335 | { |
| 1336 | *offset += chunk_size; |
| 1337 | break; |
| 1338 | } |
| 1339 | } |
| 1340 | |
| 1341 | return OK; |
| 1342 | } |
| 1343 | |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1344 | status_t MPEG4Extractor::parseTrackHeader( |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1345 | off64_t data_offset, off64_t data_size) { |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1346 | if (data_size < 4) { |
| 1347 | return ERROR_MALFORMED; |
| 1348 | } |
| 1349 | |
| 1350 | uint8_t version; |
| 1351 | if (mDataSource->readAt(data_offset, &version, 1) < 1) { |
| 1352 | return ERROR_IO; |
| 1353 | } |
| 1354 | |
| 1355 | size_t dynSize = (version == 1) ? 36 : 24; |
| 1356 | |
| 1357 | uint8_t buffer[36 + 60]; |
| 1358 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1359 | if (data_size != (off64_t)dynSize + 60) { |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1360 | return ERROR_MALFORMED; |
| 1361 | } |
| 1362 | |
| 1363 | if (mDataSource->readAt( |
| 1364 | data_offset, buffer, data_size) < (ssize_t)data_size) { |
| 1365 | return ERROR_IO; |
| 1366 | } |
| 1367 | |
| 1368 | uint64_t ctime, mtime, duration; |
| 1369 | int32_t id; |
| 1370 | |
| 1371 | if (version == 1) { |
| 1372 | ctime = U64_AT(&buffer[4]); |
| 1373 | mtime = U64_AT(&buffer[12]); |
| 1374 | id = U32_AT(&buffer[20]); |
| 1375 | duration = U64_AT(&buffer[28]); |
| 1376 | } else { |
| 1377 | CHECK_EQ((unsigned)version, 0u); |
| 1378 | |
| 1379 | ctime = U32_AT(&buffer[4]); |
| 1380 | mtime = U32_AT(&buffer[8]); |
| 1381 | id = U32_AT(&buffer[12]); |
| 1382 | duration = U32_AT(&buffer[20]); |
| 1383 | } |
| 1384 | |
| 1385 | mLastTrack->meta->setInt32(kKeyTrackID, id); |
| 1386 | |
| 1387 | size_t matrixOffset = dynSize + 16; |
| 1388 | int32_t a00 = U32_AT(&buffer[matrixOffset]); |
| 1389 | int32_t a01 = U32_AT(&buffer[matrixOffset + 4]); |
| 1390 | int32_t dx = U32_AT(&buffer[matrixOffset + 8]); |
| 1391 | int32_t a10 = U32_AT(&buffer[matrixOffset + 12]); |
| 1392 | int32_t a11 = U32_AT(&buffer[matrixOffset + 16]); |
| 1393 | int32_t dy = U32_AT(&buffer[matrixOffset + 20]); |
| 1394 | |
| 1395 | #if 0 |
| 1396 | LOGI("x' = %.2f * x + %.2f * y + %.2f", |
| 1397 | a00 / 65536.0f, a01 / 65536.0f, dx / 65536.0f); |
| 1398 | LOGI("y' = %.2f * x + %.2f * y + %.2f", |
| 1399 | a10 / 65536.0f, a11 / 65536.0f, dy / 65536.0f); |
| 1400 | #endif |
| 1401 | |
| 1402 | uint32_t rotationDegrees; |
| 1403 | |
| 1404 | static const int32_t kFixedOne = 0x10000; |
| 1405 | if (a00 == kFixedOne && a01 == 0 && a10 == 0 && a11 == kFixedOne) { |
| 1406 | // Identity, no rotation |
| 1407 | rotationDegrees = 0; |
| 1408 | } else if (a00 == 0 && a01 == kFixedOne && a10 == -kFixedOne && a11 == 0) { |
| 1409 | rotationDegrees = 90; |
| 1410 | } else if (a00 == 0 && a01 == -kFixedOne && a10 == kFixedOne && a11 == 0) { |
| 1411 | rotationDegrees = 270; |
| 1412 | } else if (a00 == -kFixedOne && a01 == 0 && a10 == 0 && a11 == -kFixedOne) { |
| 1413 | rotationDegrees = 180; |
| 1414 | } else { |
| 1415 | LOGW("We only support 0,90,180,270 degree rotation matrices"); |
| 1416 | rotationDegrees = 0; |
| 1417 | } |
| 1418 | |
| 1419 | if (rotationDegrees != 0) { |
| 1420 | mLastTrack->meta->setInt32(kKeyRotation, rotationDegrees); |
| 1421 | } |
| 1422 | |
James Dong | 08adfd2 | 2011-01-16 11:30:13 -0800 | [diff] [blame] | 1423 | // Handle presentation display size, which could be different |
| 1424 | // from the image size indicated by kKeyWidth and kKeyHeight. |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1425 | uint32_t width = U32_AT(&buffer[dynSize + 52]); |
| 1426 | uint32_t height = U32_AT(&buffer[dynSize + 56]); |
James Dong | 08adfd2 | 2011-01-16 11:30:13 -0800 | [diff] [blame] | 1427 | mLastTrack->meta->setInt32(kKeyDisplayWidth, width >> 16); |
| 1428 | mLastTrack->meta->setInt32(kKeyDisplayHeight, height >> 16); |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1429 | |
| 1430 | return OK; |
| 1431 | } |
| 1432 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1433 | status_t MPEG4Extractor::parseMetaData(off64_t offset, size_t size) { |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1434 | if (size < 4) { |
| 1435 | return ERROR_MALFORMED; |
| 1436 | } |
| 1437 | |
| 1438 | uint8_t *buffer = new uint8_t[size + 1]; |
| 1439 | if (mDataSource->readAt( |
| 1440 | offset, buffer, size) != (ssize_t)size) { |
| 1441 | delete[] buffer; |
| 1442 | buffer = NULL; |
| 1443 | |
| 1444 | return ERROR_IO; |
| 1445 | } |
| 1446 | |
| 1447 | uint32_t flags = U32_AT(buffer); |
| 1448 | |
| 1449 | uint32_t metadataKey = 0; |
| 1450 | switch (mPath[4]) { |
| 1451 | case FOURCC(0xa9, 'a', 'l', 'b'): |
| 1452 | { |
| 1453 | metadataKey = kKeyAlbum; |
| 1454 | break; |
| 1455 | } |
| 1456 | case FOURCC(0xa9, 'A', 'R', 'T'): |
| 1457 | { |
| 1458 | metadataKey = kKeyArtist; |
| 1459 | break; |
| 1460 | } |
Marco Nelissen | c5d5ee3 | 2010-02-11 13:31:44 -0800 | [diff] [blame] | 1461 | case FOURCC('a', 'A', 'R', 'T'): |
| 1462 | { |
| 1463 | metadataKey = kKeyAlbumArtist; |
| 1464 | break; |
| 1465 | } |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1466 | case FOURCC(0xa9, 'd', 'a', 'y'): |
| 1467 | { |
| 1468 | metadataKey = kKeyYear; |
| 1469 | break; |
| 1470 | } |
| 1471 | case FOURCC(0xa9, 'n', 'a', 'm'): |
| 1472 | { |
| 1473 | metadataKey = kKeyTitle; |
| 1474 | break; |
| 1475 | } |
| 1476 | case FOURCC(0xa9, 'w', 'r', 't'): |
| 1477 | { |
| 1478 | metadataKey = kKeyWriter; |
| 1479 | break; |
| 1480 | } |
| 1481 | case FOURCC('c', 'o', 'v', 'r'): |
| 1482 | { |
| 1483 | metadataKey = kKeyAlbumArt; |
| 1484 | break; |
| 1485 | } |
| 1486 | case FOURCC('g', 'n', 'r', 'e'): |
| 1487 | { |
| 1488 | metadataKey = kKeyGenre; |
| 1489 | break; |
| 1490 | } |
Marco Nelissen | fe3b8e9 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 1491 | case FOURCC(0xa9, 'g', 'e', 'n'): |
| 1492 | { |
| 1493 | metadataKey = kKeyGenre; |
| 1494 | break; |
| 1495 | } |
Marco Nelissen | ee35aff | 2011-01-06 11:12:17 -0800 | [diff] [blame] | 1496 | case FOURCC('c', 'p', 'i', 'l'): |
| 1497 | { |
| 1498 | if (size == 9 && flags == 21) { |
| 1499 | char tmp[16]; |
| 1500 | sprintf(tmp, "%d", |
| 1501 | (int)buffer[size - 1]); |
| 1502 | |
| 1503 | mFileMetaData->setCString(kKeyCompilation, tmp); |
| 1504 | } |
| 1505 | break; |
| 1506 | } |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1507 | case FOURCC('t', 'r', 'k', 'n'): |
| 1508 | { |
| 1509 | if (size == 16 && flags == 0) { |
| 1510 | char tmp[16]; |
| 1511 | sprintf(tmp, "%d/%d", |
| 1512 | (int)buffer[size - 5], (int)buffer[size - 3]); |
| 1513 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1514 | mFileMetaData->setCString(kKeyCDTrackNumber, tmp); |
| 1515 | } |
| 1516 | break; |
| 1517 | } |
Marco Nelissen | fe3b8e9 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 1518 | case FOURCC('d', 'i', 's', 'k'): |
| 1519 | { |
| 1520 | if (size == 14 && flags == 0) { |
| 1521 | char tmp[16]; |
| 1522 | sprintf(tmp, "%d/%d", |
| 1523 | (int)buffer[size - 3], (int)buffer[size - 1]); |
| 1524 | |
| 1525 | mFileMetaData->setCString(kKeyDiscNumber, tmp); |
| 1526 | } |
| 1527 | break; |
| 1528 | } |
| 1529 | |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1530 | default: |
| 1531 | break; |
| 1532 | } |
| 1533 | |
| 1534 | if (size >= 8 && metadataKey) { |
| 1535 | if (metadataKey == kKeyAlbumArt) { |
| 1536 | mFileMetaData->setData( |
| 1537 | kKeyAlbumArt, MetaData::TYPE_NONE, |
| 1538 | buffer + 8, size - 8); |
| 1539 | } else if (metadataKey == kKeyGenre) { |
| 1540 | if (flags == 0) { |
Marco Nelissen | fe3b8e9 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 1541 | // uint8_t genre code, iTunes genre codes are |
| 1542 | // the standard id3 codes, except they start |
| 1543 | // at 1 instead of 0 (e.g. Pop is 14, not 13) |
| 1544 | // We use standard id3 numbering, so subtract 1. |
| 1545 | int genrecode = (int)buffer[size - 1]; |
| 1546 | genrecode--; |
| 1547 | if (genrecode < 0) { |
| 1548 | genrecode = 255; // reserved for 'unknown genre' |
| 1549 | } |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1550 | char genre[10]; |
Marco Nelissen | fe3b8e9 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 1551 | sprintf(genre, "%d", genrecode); |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1552 | |
| 1553 | mFileMetaData->setCString(metadataKey, genre); |
Marco Nelissen | fe3b8e9 | 2010-02-09 14:02:16 -0800 | [diff] [blame] | 1554 | } else if (flags == 1) { |
| 1555 | // custom genre string |
| 1556 | buffer[size] = '\0'; |
| 1557 | |
| 1558 | mFileMetaData->setCString( |
| 1559 | metadataKey, (const char *)buffer + 8); |
Andreas Huber | c2c9dd3 | 2010-01-19 16:43:53 -0800 | [diff] [blame] | 1560 | } |
| 1561 | } else { |
| 1562 | buffer[size] = '\0'; |
| 1563 | |
| 1564 | mFileMetaData->setCString( |
| 1565 | metadataKey, (const char *)buffer + 8); |
| 1566 | } |
| 1567 | } |
| 1568 | |
| 1569 | delete[] buffer; |
| 1570 | buffer = NULL; |
| 1571 | |
| 1572 | return OK; |
| 1573 | } |
| 1574 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 1575 | sp<MediaSource> MPEG4Extractor::getTrack(size_t index) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1576 | status_t err; |
| 1577 | if ((err = readMetaData()) != OK) { |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 1578 | return NULL; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1579 | } |
| 1580 | |
| 1581 | Track *track = mFirstTrack; |
| 1582 | while (index > 0) { |
| 1583 | if (track == NULL) { |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 1584 | return NULL; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1585 | } |
| 1586 | |
| 1587 | track = track->next; |
| 1588 | --index; |
| 1589 | } |
| 1590 | |
Andreas Huber | 2a65117 | 2009-09-09 16:32:59 -0700 | [diff] [blame] | 1591 | if (track == NULL) { |
| 1592 | return NULL; |
| 1593 | } |
| 1594 | |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 1595 | return new MPEG4Source( |
Andreas Huber | fa8de75 | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 1596 | track->meta, mDataSource, track->timescale, track->sampleTable); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1597 | } |
| 1598 | |
Andreas Huber | 5ee0bce | 2010-02-23 10:12:02 -0800 | [diff] [blame] | 1599 | // static |
| 1600 | status_t MPEG4Extractor::verifyTrack(Track *track) { |
| 1601 | const char *mime; |
| 1602 | CHECK(track->meta->findCString(kKeyMIMEType, &mime)); |
| 1603 | |
| 1604 | uint32_t type; |
| 1605 | const void *data; |
| 1606 | size_t size; |
| 1607 | if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC)) { |
| 1608 | if (!track->meta->findData(kKeyAVCC, &type, &data, &size) |
| 1609 | || type != kTypeAVCC) { |
| 1610 | return ERROR_MALFORMED; |
| 1611 | } |
| 1612 | } else if (!strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_MPEG4) |
| 1613 | || !strcasecmp(mime, MEDIA_MIMETYPE_AUDIO_AAC)) { |
| 1614 | if (!track->meta->findData(kKeyESDS, &type, &data, &size) |
| 1615 | || type != kTypeESDS) { |
| 1616 | return ERROR_MALFORMED; |
| 1617 | } |
| 1618 | } |
| 1619 | |
| 1620 | return OK; |
| 1621 | } |
| 1622 | |
Andreas Huber | d231596 | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 1623 | status_t MPEG4Extractor::updateAudioTrackInfoFromESDS_MPEG4Audio( |
| 1624 | const void *esds_data, size_t esds_size) { |
| 1625 | ESDS esds(esds_data, esds_size); |
Andreas Huber | d0332ad | 2010-04-12 16:05:57 -0700 | [diff] [blame] | 1626 | |
| 1627 | uint8_t objectTypeIndication; |
| 1628 | if (esds.getObjectTypeIndication(&objectTypeIndication) != OK) { |
| 1629 | return ERROR_MALFORMED; |
| 1630 | } |
| 1631 | |
| 1632 | if (objectTypeIndication == 0xe1) { |
| 1633 | // This isn't MPEG4 audio at all, it's QCELP 14k... |
| 1634 | mLastTrack->meta->setCString(kKeyMIMEType, MEDIA_MIMETYPE_AUDIO_QCELP); |
| 1635 | return OK; |
| 1636 | } |
| 1637 | |
James Dong | e883d31 | 2011-02-24 21:16:54 -0800 | [diff] [blame] | 1638 | if (objectTypeIndication == 0x6b) { |
| 1639 | // The media subtype is MP3 audio |
| 1640 | // Our software MP3 audio decoder may not be able to handle |
| 1641 | // packetized MP3 audio; for now, lets just return ERROR_UNSUPPORTED |
| 1642 | LOGE("MP3 track in MP4/3GPP file is not supported"); |
| 1643 | return ERROR_UNSUPPORTED; |
| 1644 | } |
| 1645 | |
Andreas Huber | d231596 | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 1646 | const uint8_t *csd; |
| 1647 | size_t csd_size; |
| 1648 | if (esds.getCodecSpecificInfo( |
| 1649 | (const void **)&csd, &csd_size) != OK) { |
| 1650 | return ERROR_MALFORMED; |
| 1651 | } |
| 1652 | |
| 1653 | #if 0 |
| 1654 | printf("ESD of size %d\n", csd_size); |
| 1655 | hexdump(csd, csd_size); |
| 1656 | #endif |
| 1657 | |
Andreas Huber | 08c94b2 | 2010-08-18 09:58:30 -0700 | [diff] [blame] | 1658 | if (csd_size == 0) { |
| 1659 | // There's no further information, i.e. no codec specific data |
| 1660 | // Let's assume that the information provided in the mpeg4 headers |
| 1661 | // is accurate and hope for the best. |
| 1662 | |
| 1663 | return OK; |
| 1664 | } |
| 1665 | |
Andreas Huber | d231596 | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 1666 | if (csd_size < 2) { |
| 1667 | return ERROR_MALFORMED; |
| 1668 | } |
| 1669 | |
| 1670 | uint32_t objectType = csd[0] >> 3; |
| 1671 | |
| 1672 | if (objectType == 31) { |
| 1673 | return ERROR_UNSUPPORTED; |
| 1674 | } |
| 1675 | |
| 1676 | uint32_t freqIndex = (csd[0] & 7) << 1 | (csd[1] >> 7); |
| 1677 | int32_t sampleRate = 0; |
| 1678 | int32_t numChannels = 0; |
| 1679 | if (freqIndex == 15) { |
| 1680 | if (csd_size < 5) { |
| 1681 | return ERROR_MALFORMED; |
| 1682 | } |
| 1683 | |
| 1684 | sampleRate = (csd[1] & 0x7f) << 17 |
| 1685 | | csd[2] << 9 |
| 1686 | | csd[3] << 1 |
| 1687 | | (csd[4] >> 7); |
| 1688 | |
| 1689 | numChannels = (csd[4] >> 3) & 15; |
| 1690 | } else { |
Andreas Huber | cc14a83 | 2010-07-20 09:21:17 -0700 | [diff] [blame] | 1691 | static uint32_t kSamplingRate[] = { |
| 1692 | 96000, 88200, 64000, 48000, 44100, 32000, 24000, 22050, |
| 1693 | 16000, 12000, 11025, 8000, 7350 |
| 1694 | }; |
Andreas Huber | d231596 | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 1695 | |
| 1696 | if (freqIndex == 13 || freqIndex == 14) { |
| 1697 | return ERROR_MALFORMED; |
| 1698 | } |
| 1699 | |
| 1700 | sampleRate = kSamplingRate[freqIndex]; |
| 1701 | numChannels = (csd[1] >> 3) & 15; |
| 1702 | } |
| 1703 | |
| 1704 | if (numChannels == 0) { |
| 1705 | return ERROR_UNSUPPORTED; |
| 1706 | } |
| 1707 | |
| 1708 | int32_t prevSampleRate; |
| 1709 | CHECK(mLastTrack->meta->findInt32(kKeySampleRate, &prevSampleRate)); |
| 1710 | |
| 1711 | if (prevSampleRate != sampleRate) { |
Andreas Huber | 4a9375e | 2010-02-09 11:54:33 -0800 | [diff] [blame] | 1712 | LOGV("mpeg4 audio sample rate different from previous setting. " |
Andreas Huber | d231596 | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 1713 | "was: %d, now: %d", prevSampleRate, sampleRate); |
| 1714 | } |
| 1715 | |
| 1716 | mLastTrack->meta->setInt32(kKeySampleRate, sampleRate); |
| 1717 | |
| 1718 | int32_t prevChannelCount; |
| 1719 | CHECK(mLastTrack->meta->findInt32(kKeyChannelCount, &prevChannelCount)); |
| 1720 | |
| 1721 | if (prevChannelCount != numChannels) { |
Andreas Huber | 4a9375e | 2010-02-09 11:54:33 -0800 | [diff] [blame] | 1722 | LOGV("mpeg4 audio channel count different from previous setting. " |
Andreas Huber | d231596 | 2010-01-29 14:46:59 -0800 | [diff] [blame] | 1723 | "was: %d, now: %d", prevChannelCount, numChannels); |
| 1724 | } |
| 1725 | |
| 1726 | mLastTrack->meta->setInt32(kKeyChannelCount, numChannels); |
| 1727 | |
| 1728 | return OK; |
| 1729 | } |
| 1730 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1731 | //////////////////////////////////////////////////////////////////////////////// |
| 1732 | |
| 1733 | MPEG4Source::MPEG4Source( |
| 1734 | const sp<MetaData> &format, |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 1735 | const sp<DataSource> &dataSource, |
Andreas Huber | fa8de75 | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 1736 | int32_t timeScale, |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 1737 | const sp<SampleTable> &sampleTable) |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1738 | : mFormat(format), |
| 1739 | mDataSource(dataSource), |
Andreas Huber | fa8de75 | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 1740 | mTimescale(timeScale), |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1741 | mSampleTable(sampleTable), |
| 1742 | mCurrentSampleIndex(0), |
| 1743 | mIsAVC(false), |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 1744 | mNALLengthSize(0), |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1745 | mStarted(false), |
| 1746 | mGroup(NULL), |
| 1747 | mBuffer(NULL), |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1748 | mWantsNALFragments(false), |
Andreas Huber | 8a43277 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 1749 | mSrcBuffer(NULL) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1750 | const char *mime; |
| 1751 | bool success = mFormat->findCString(kKeyMIMEType, &mime); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1752 | CHECK(success); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1753 | |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 1754 | mIsAVC = !strcasecmp(mime, MEDIA_MIMETYPE_VIDEO_AVC); |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 1755 | |
| 1756 | if (mIsAVC) { |
| 1757 | uint32_t type; |
| 1758 | const void *data; |
| 1759 | size_t size; |
| 1760 | CHECK(format->findData(kKeyAVCC, &type, &data, &size)); |
| 1761 | |
| 1762 | const uint8_t *ptr = (const uint8_t *)data; |
| 1763 | |
| 1764 | CHECK(size >= 7); |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1765 | CHECK_EQ((unsigned)ptr[0], 1u); // configurationVersion == 1 |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 1766 | |
| 1767 | // The number of bytes used to encode the length of a NAL unit. |
| 1768 | mNALLengthSize = 1 + (ptr[4] & 3); |
| 1769 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1770 | } |
| 1771 | |
| 1772 | MPEG4Source::~MPEG4Source() { |
| 1773 | if (mStarted) { |
| 1774 | stop(); |
| 1775 | } |
| 1776 | } |
| 1777 | |
| 1778 | status_t MPEG4Source::start(MetaData *params) { |
Andreas Huber | ba7ec91 | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 1779 | Mutex::Autolock autoLock(mLock); |
| 1780 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1781 | CHECK(!mStarted); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1782 | |
| 1783 | int32_t val; |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1784 | if (params && params->findInt32(kKeyWantsNALFragments, &val) |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1785 | && val != 0) { |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1786 | mWantsNALFragments = true; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1787 | } else { |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1788 | mWantsNALFragments = false; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1789 | } |
| 1790 | |
| 1791 | mGroup = new MediaBufferGroup; |
| 1792 | |
Andreas Huber | 1bceff9 | 2009-11-23 14:03:32 -0800 | [diff] [blame] | 1793 | int32_t max_size; |
| 1794 | CHECK(mFormat->findInt32(kKeyMaxInputSize, &max_size)); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1795 | |
Andreas Huber | 1bceff9 | 2009-11-23 14:03:32 -0800 | [diff] [blame] | 1796 | mGroup->add_buffer(new MediaBuffer(max_size)); |
Andreas Huber | 8a43277 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 1797 | |
| 1798 | mSrcBuffer = new uint8_t[max_size]; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1799 | |
| 1800 | mStarted = true; |
| 1801 | |
| 1802 | return OK; |
| 1803 | } |
| 1804 | |
| 1805 | status_t MPEG4Source::stop() { |
Andreas Huber | ba7ec91 | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 1806 | Mutex::Autolock autoLock(mLock); |
| 1807 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1808 | CHECK(mStarted); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1809 | |
| 1810 | if (mBuffer != NULL) { |
| 1811 | mBuffer->release(); |
| 1812 | mBuffer = NULL; |
| 1813 | } |
| 1814 | |
Andreas Huber | 8a43277 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 1815 | delete[] mSrcBuffer; |
| 1816 | mSrcBuffer = NULL; |
| 1817 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1818 | delete mGroup; |
| 1819 | mGroup = NULL; |
| 1820 | |
| 1821 | mStarted = false; |
| 1822 | mCurrentSampleIndex = 0; |
| 1823 | |
| 1824 | return OK; |
| 1825 | } |
| 1826 | |
| 1827 | sp<MetaData> MPEG4Source::getFormat() { |
Andreas Huber | ba7ec91 | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 1828 | Mutex::Autolock autoLock(mLock); |
| 1829 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1830 | return mFormat; |
| 1831 | } |
| 1832 | |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 1833 | size_t MPEG4Source::parseNALSize(const uint8_t *data) const { |
| 1834 | switch (mNALLengthSize) { |
| 1835 | case 1: |
| 1836 | return *data; |
| 1837 | case 2: |
| 1838 | return U16_AT(data); |
| 1839 | case 3: |
| 1840 | return ((size_t)data[0] << 16) | U16_AT(&data[1]); |
| 1841 | case 4: |
| 1842 | return U32_AT(data); |
| 1843 | } |
| 1844 | |
| 1845 | // This cannot happen, mNALLengthSize springs to life by adding 1 to |
| 1846 | // a 2-bit integer. |
| 1847 | CHECK(!"Should not be here."); |
| 1848 | |
| 1849 | return 0; |
| 1850 | } |
| 1851 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1852 | status_t MPEG4Source::read( |
| 1853 | MediaBuffer **out, const ReadOptions *options) { |
Andreas Huber | ba7ec91 | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 1854 | Mutex::Autolock autoLock(mLock); |
| 1855 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1856 | CHECK(mStarted); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1857 | |
| 1858 | *out = NULL; |
| 1859 | |
Andreas Huber | 6624c9f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 1860 | int64_t targetSampleTimeUs = -1; |
| 1861 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1862 | int64_t seekTimeUs; |
Andreas Huber | 6624c9f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 1863 | ReadOptions::SeekMode mode; |
| 1864 | if (options && options->getSeekTo(&seekTimeUs, &mode)) { |
| 1865 | uint32_t findFlags = 0; |
| 1866 | switch (mode) { |
| 1867 | case ReadOptions::SEEK_PREVIOUS_SYNC: |
| 1868 | findFlags = SampleTable::kFlagBefore; |
| 1869 | break; |
| 1870 | case ReadOptions::SEEK_NEXT_SYNC: |
| 1871 | findFlags = SampleTable::kFlagAfter; |
| 1872 | break; |
| 1873 | case ReadOptions::SEEK_CLOSEST_SYNC: |
| 1874 | case ReadOptions::SEEK_CLOSEST: |
| 1875 | findFlags = SampleTable::kFlagClosest; |
| 1876 | break; |
| 1877 | default: |
| 1878 | CHECK(!"Should not be here."); |
| 1879 | break; |
| 1880 | } |
| 1881 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1882 | uint32_t sampleIndex; |
Andreas Huber | 6624c9f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 1883 | status_t err = mSampleTable->findSampleAtTime( |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1884 | seekTimeUs * mTimescale / 1000000, |
Andreas Huber | 6624c9f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 1885 | &sampleIndex, findFlags); |
| 1886 | |
| 1887 | if (mode == ReadOptions::SEEK_CLOSEST) { |
| 1888 | // We found the closest sample already, now we want the sync |
| 1889 | // sample preceding it (or the sample itself of course), even |
| 1890 | // if the subsequent sync sample is closer. |
| 1891 | findFlags = SampleTable::kFlagBefore; |
| 1892 | } |
| 1893 | |
| 1894 | uint32_t syncSampleIndex; |
| 1895 | if (err == OK) { |
| 1896 | err = mSampleTable->findSyncSampleNear( |
| 1897 | sampleIndex, &syncSampleIndex, findFlags); |
| 1898 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1899 | |
| 1900 | if (err != OK) { |
Andreas Huber | d7d22eb | 2010-02-23 13:45:33 -0800 | [diff] [blame] | 1901 | if (err == ERROR_OUT_OF_RANGE) { |
| 1902 | // An attempt to seek past the end of the stream would |
| 1903 | // normally cause this ERROR_OUT_OF_RANGE error. Propagating |
| 1904 | // this all the way to the MediaPlayer would cause abnormal |
| 1905 | // termination. Legacy behaviour appears to be to behave as if |
| 1906 | // we had seeked to the end of stream, ending normally. |
| 1907 | err = ERROR_END_OF_STREAM; |
| 1908 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1909 | return err; |
| 1910 | } |
| 1911 | |
Andreas Huber | 6624c9f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 1912 | uint32_t sampleTime; |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1913 | CHECK_EQ((status_t)OK, mSampleTable->getMetaDataForSample( |
Andreas Huber | 6624c9f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 1914 | sampleIndex, NULL, NULL, &sampleTime)); |
| 1915 | |
| 1916 | if (mode == ReadOptions::SEEK_CLOSEST) { |
| 1917 | targetSampleTimeUs = (sampleTime * 1000000ll) / mTimescale; |
| 1918 | } |
| 1919 | |
| 1920 | #if 0 |
| 1921 | uint32_t syncSampleTime; |
| 1922 | CHECK_EQ(OK, mSampleTable->getMetaDataForSample( |
| 1923 | syncSampleIndex, NULL, NULL, &syncSampleTime)); |
| 1924 | |
| 1925 | LOGI("seek to time %lld us => sample at time %lld us, " |
| 1926 | "sync sample at time %lld us", |
| 1927 | seekTimeUs, |
| 1928 | sampleTime * 1000000ll / mTimescale, |
| 1929 | syncSampleTime * 1000000ll / mTimescale); |
| 1930 | #endif |
| 1931 | |
| 1932 | mCurrentSampleIndex = syncSampleIndex; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1933 | if (mBuffer != NULL) { |
| 1934 | mBuffer->release(); |
| 1935 | mBuffer = NULL; |
| 1936 | } |
| 1937 | |
| 1938 | // fall through |
| 1939 | } |
| 1940 | |
James Dong | b1262a8 | 2010-11-16 14:04:54 -0800 | [diff] [blame] | 1941 | off64_t offset; |
Andreas Huber | 8a43277 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 1942 | size_t size; |
Andreas Huber | 44fdac0 | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 1943 | uint32_t cts; |
Andreas Huber | ad98d38 | 2010-08-06 14:13:10 -0700 | [diff] [blame] | 1944 | bool isSyncSample; |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1945 | bool newBuffer = false; |
| 1946 | if (mBuffer == NULL) { |
| 1947 | newBuffer = true; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1948 | |
Andreas Huber | 1faa92a | 2010-01-19 10:39:21 -0800 | [diff] [blame] | 1949 | status_t err = |
| 1950 | mSampleTable->getMetaDataForSample( |
Andreas Huber | 44fdac0 | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 1951 | mCurrentSampleIndex, &offset, &size, &cts, &isSyncSample); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1952 | |
| 1953 | if (err != OK) { |
| 1954 | return err; |
| 1955 | } |
| 1956 | |
| 1957 | err = mGroup->acquire_buffer(&mBuffer); |
Andreas Huber | 1faa92a | 2010-01-19 10:39:21 -0800 | [diff] [blame] | 1958 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1959 | if (err != OK) { |
Andreas Huber | 940c866 | 2010-11-16 15:26:30 -0800 | [diff] [blame] | 1960 | CHECK(mBuffer == NULL); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1961 | return err; |
| 1962 | } |
Andreas Huber | 8a43277 | 2009-07-28 10:03:13 -0700 | [diff] [blame] | 1963 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1964 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1965 | if (!mIsAVC || mWantsNALFragments) { |
| 1966 | if (newBuffer) { |
| 1967 | ssize_t num_bytes_read = |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 1968 | mDataSource->readAt(offset, (uint8_t *)mBuffer->data(), size); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 1969 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1970 | if (num_bytes_read < (ssize_t)size) { |
| 1971 | mBuffer->release(); |
| 1972 | mBuffer = NULL; |
| 1973 | |
| 1974 | return ERROR_IO; |
| 1975 | } |
| 1976 | |
Andreas Huber | ba7ec91 | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 1977 | CHECK(mBuffer != NULL); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1978 | mBuffer->set_range(0, size); |
| 1979 | mBuffer->meta_data()->clear(); |
Andreas Huber | fa8de75 | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 1980 | mBuffer->meta_data()->setInt64( |
Andreas Huber | 44fdac0 | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 1981 | kKeyTime, ((int64_t)cts * 1000000) / mTimescale); |
Andreas Huber | 6624c9f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 1982 | |
| 1983 | if (targetSampleTimeUs >= 0) { |
| 1984 | mBuffer->meta_data()->setInt64( |
| 1985 | kKeyTargetTime, targetSampleTimeUs); |
| 1986 | } |
| 1987 | |
Andreas Huber | ad98d38 | 2010-08-06 14:13:10 -0700 | [diff] [blame] | 1988 | if (isSyncSample) { |
| 1989 | mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1); |
| 1990 | } |
| 1991 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 1992 | ++mCurrentSampleIndex; |
| 1993 | } |
| 1994 | |
| 1995 | if (!mIsAVC) { |
| 1996 | *out = mBuffer; |
| 1997 | mBuffer = NULL; |
| 1998 | |
| 1999 | return OK; |
| 2000 | } |
| 2001 | |
| 2002 | // Each NAL unit is split up into its constituent fragments and |
| 2003 | // each one of them returned in its own buffer. |
| 2004 | |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2005 | CHECK(mBuffer->range_length() >= mNALLengthSize); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2006 | |
| 2007 | const uint8_t *src = |
| 2008 | (const uint8_t *)mBuffer->data() + mBuffer->range_offset(); |
| 2009 | |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2010 | size_t nal_size = parseNALSize(src); |
Andreas Huber | 909255a | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 2011 | if (mBuffer->range_length() < mNALLengthSize + nal_size) { |
| 2012 | LOGE("incomplete NAL unit."); |
| 2013 | |
| 2014 | mBuffer->release(); |
| 2015 | mBuffer = NULL; |
| 2016 | |
| 2017 | return ERROR_MALFORMED; |
| 2018 | } |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2019 | |
| 2020 | MediaBuffer *clone = mBuffer->clone(); |
Andreas Huber | ba7ec91 | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 2021 | CHECK(clone != NULL); |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2022 | clone->set_range(mBuffer->range_offset() + mNALLengthSize, nal_size); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2023 | |
Andreas Huber | ba7ec91 | 2010-02-12 10:42:02 -0800 | [diff] [blame] | 2024 | CHECK(mBuffer != NULL); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2025 | mBuffer->set_range( |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2026 | mBuffer->range_offset() + mNALLengthSize + nal_size, |
| 2027 | mBuffer->range_length() - mNALLengthSize - nal_size); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2028 | |
| 2029 | if (mBuffer->range_length() == 0) { |
| 2030 | mBuffer->release(); |
| 2031 | mBuffer = NULL; |
| 2032 | } |
| 2033 | |
| 2034 | *out = clone; |
| 2035 | |
| 2036 | return OK; |
| 2037 | } else { |
| 2038 | // Whole NAL units are returned but each fragment is prefixed by |
| 2039 | // the start code (0x00 00 00 01). |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 2040 | ssize_t num_bytes_read = 0; |
| 2041 | int32_t drm = 0; |
| 2042 | bool usesDRM = (mFormat->findInt32(kKeyIsDRM, &drm) && drm != 0); |
| 2043 | if (usesDRM) { |
| 2044 | num_bytes_read = |
| 2045 | mDataSource->readAt(offset, (uint8_t*)mBuffer->data(), size); |
| 2046 | } else { |
| 2047 | num_bytes_read = mDataSource->readAt(offset, mSrcBuffer, size); |
| 2048 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2049 | |
| 2050 | if (num_bytes_read < (ssize_t)size) { |
| 2051 | mBuffer->release(); |
| 2052 | mBuffer = NULL; |
| 2053 | |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2054 | return ERROR_IO; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2055 | } |
| 2056 | |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 2057 | if (usesDRM) { |
| 2058 | CHECK(mBuffer != NULL); |
| 2059 | mBuffer->set_range(0, size); |
Andreas Huber | db5d662 | 2010-01-12 16:30:44 -0800 | [diff] [blame] | 2060 | |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 2061 | } else { |
| 2062 | uint8_t *dstData = (uint8_t *)mBuffer->data(); |
| 2063 | size_t srcOffset = 0; |
| 2064 | size_t dstOffset = 0; |
Andreas Huber | 909255a | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 2065 | |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 2066 | while (srcOffset < size) { |
James Dong | 34d76ac | 2011-04-22 13:21:03 -0700 | [diff] [blame] | 2067 | bool isMalFormed = (srcOffset + mNALLengthSize > size); |
| 2068 | size_t nalLength = 0; |
| 2069 | if (!isMalFormed) { |
| 2070 | nalLength = parseNALSize(&mSrcBuffer[srcOffset]); |
| 2071 | srcOffset += mNALLengthSize; |
| 2072 | isMalFormed = srcOffset + nalLength > size; |
| 2073 | } |
Andreas Huber | 909255a | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 2074 | |
James Dong | 34d76ac | 2011-04-22 13:21:03 -0700 | [diff] [blame] | 2075 | if (isMalFormed) { |
| 2076 | LOGE("Video is malformed"); |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 2077 | mBuffer->release(); |
| 2078 | mBuffer = NULL; |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 2079 | return ERROR_MALFORMED; |
| 2080 | } |
| 2081 | |
| 2082 | if (nalLength == 0) { |
| 2083 | continue; |
| 2084 | } |
| 2085 | |
| 2086 | CHECK(dstOffset + 4 <= mBuffer->size()); |
| 2087 | |
| 2088 | dstData[dstOffset++] = 0; |
| 2089 | dstData[dstOffset++] = 0; |
| 2090 | dstData[dstOffset++] = 0; |
| 2091 | dstData[dstOffset++] = 1; |
| 2092 | memcpy(&dstData[dstOffset], &mSrcBuffer[srcOffset], nalLength); |
| 2093 | srcOffset += nalLength; |
| 2094 | dstOffset += nalLength; |
Andreas Huber | 909255a | 2010-01-14 14:13:15 -0800 | [diff] [blame] | 2095 | } |
Gloria Wang | d577091 | 2010-06-22 13:55:38 -0700 | [diff] [blame] | 2096 | CHECK_EQ(srcOffset, size); |
| 2097 | CHECK(mBuffer != NULL); |
| 2098 | mBuffer->set_range(0, dstOffset); |
Andreas Huber | 4f5e602 | 2009-08-19 09:29:34 -0700 | [diff] [blame] | 2099 | } |
| 2100 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2101 | mBuffer->meta_data()->clear(); |
Andreas Huber | fa8de75 | 2009-10-08 10:07:49 -0700 | [diff] [blame] | 2102 | mBuffer->meta_data()->setInt64( |
Andreas Huber | 44fdac0 | 2011-04-15 11:52:29 -0700 | [diff] [blame] | 2103 | kKeyTime, ((int64_t)cts * 1000000) / mTimescale); |
Andreas Huber | 6624c9f | 2010-07-20 15:04:28 -0700 | [diff] [blame] | 2104 | |
| 2105 | if (targetSampleTimeUs >= 0) { |
| 2106 | mBuffer->meta_data()->setInt64( |
| 2107 | kKeyTargetTime, targetSampleTimeUs); |
| 2108 | } |
| 2109 | |
Andreas Huber | ad98d38 | 2010-08-06 14:13:10 -0700 | [diff] [blame] | 2110 | if (isSyncSample) { |
| 2111 | mBuffer->meta_data()->setInt32(kKeyIsSyncFrame, 1); |
| 2112 | } |
| 2113 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2114 | ++mCurrentSampleIndex; |
| 2115 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2116 | *out = mBuffer; |
| 2117 | mBuffer = NULL; |
| 2118 | |
| 2119 | return OK; |
| 2120 | } |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2121 | } |
| 2122 | |
Andreas Huber | f80e45a | 2011-03-03 13:48:41 -0800 | [diff] [blame] | 2123 | MPEG4Extractor::Track *MPEG4Extractor::findTrackByMimePrefix( |
| 2124 | const char *mimePrefix) { |
| 2125 | for (Track *track = mFirstTrack; track != NULL; track = track->next) { |
| 2126 | const char *mime; |
| 2127 | if (track->meta != NULL |
| 2128 | && track->meta->findCString(kKeyMIMEType, &mime) |
| 2129 | && !strncasecmp(mime, mimePrefix, strlen(mimePrefix))) { |
| 2130 | return track; |
| 2131 | } |
| 2132 | } |
| 2133 | |
| 2134 | return NULL; |
| 2135 | } |
| 2136 | |
Andreas Huber | 261eb0c | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 2137 | static bool LegacySniffMPEG4( |
Andreas Huber | be06d26 | 2009-08-14 14:37:10 -0700 | [diff] [blame] | 2138 | const sp<DataSource> &source, String8 *mimeType, float *confidence) { |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2139 | uint8_t header[8]; |
| 2140 | |
Andreas Huber | 9a12baf | 2009-10-23 10:22:30 -0700 | [diff] [blame] | 2141 | ssize_t n = source->readAt(4, header, sizeof(header)); |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2142 | if (n < (ssize_t)sizeof(header)) { |
| 2143 | return false; |
| 2144 | } |
| 2145 | |
| 2146 | if (!memcmp(header, "ftyp3gp", 7) || !memcmp(header, "ftypmp42", 8) |
James Dong | e113066 | 2010-04-13 15:06:41 -0700 | [diff] [blame] | 2147 | || !memcmp(header, "ftyp3gr6", 8) || !memcmp(header, "ftyp3gs6", 8) |
| 2148 | || !memcmp(header, "ftyp3ge6", 8) || !memcmp(header, "ftyp3gg6", 8) |
Andreas Huber | 6bce6d8 | 2009-11-03 16:00:58 -0800 | [diff] [blame] | 2149 | || !memcmp(header, "ftypisom", 8) || !memcmp(header, "ftypM4V ", 8) |
Andreas Huber | dfb8eee | 2010-02-25 15:59:24 -0800 | [diff] [blame] | 2150 | || !memcmp(header, "ftypM4A ", 8) || !memcmp(header, "ftypf4v ", 8) |
Andreas Huber | eea1eef | 2010-04-01 11:42:50 -0700 | [diff] [blame] | 2151 | || !memcmp(header, "ftypkddi", 8) || !memcmp(header, "ftypM4VP", 8)) { |
Andreas Huber | e6c4096 | 2009-09-10 14:13:30 -0700 | [diff] [blame] | 2152 | *mimeType = MEDIA_MIMETYPE_CONTAINER_MPEG4; |
Andreas Huber | efdd088 | 2010-08-25 11:09:41 -0700 | [diff] [blame] | 2153 | *confidence = 0.4; |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2154 | |
| 2155 | return true; |
| 2156 | } |
| 2157 | |
| 2158 | return false; |
| 2159 | } |
| 2160 | |
Andreas Huber | 261eb0c | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 2161 | static bool isCompatibleBrand(uint32_t fourcc) { |
| 2162 | static const uint32_t kCompatibleBrands[] = { |
| 2163 | FOURCC('i', 's', 'o', 'm'), |
| 2164 | FOURCC('i', 's', 'o', '2'), |
| 2165 | FOURCC('a', 'v', 'c', '1'), |
| 2166 | FOURCC('3', 'g', 'p', '4'), |
| 2167 | FOURCC('m', 'p', '4', '1'), |
| 2168 | FOURCC('m', 'p', '4', '2'), |
James Dong | 5f3586e | 2011-04-07 17:57:04 -0700 | [diff] [blame] | 2169 | |
| 2170 | // Won't promise that the following file types can be played. |
| 2171 | // Just give these file types a chance. |
| 2172 | FOURCC('q', 't', ' ', ' '), // Apple's QuickTime |
| 2173 | FOURCC('M', 'S', 'N', 'V'), // Sony's PSP |
Andreas Huber | 261eb0c | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 2174 | }; |
| 2175 | |
| 2176 | for (size_t i = 0; |
| 2177 | i < sizeof(kCompatibleBrands) / sizeof(kCompatibleBrands[0]); |
| 2178 | ++i) { |
| 2179 | if (kCompatibleBrands[i] == fourcc) { |
| 2180 | return true; |
| 2181 | } |
| 2182 | } |
| 2183 | |
| 2184 | return false; |
| 2185 | } |
| 2186 | |
| 2187 | // Attempt to actually parse the 'ftyp' atom and determine if a suitable |
| 2188 | // compatible brand is present. |
| 2189 | static bool BetterSniffMPEG4( |
| 2190 | const sp<DataSource> &source, String8 *mimeType, float *confidence) { |
| 2191 | uint8_t header[12]; |
| 2192 | if (source->readAt(0, header, 12) != 12 |
| 2193 | || memcmp("ftyp", &header[4], 4)) { |
| 2194 | return false; |
| 2195 | } |
| 2196 | |
| 2197 | size_t atomSize = U32_AT(&header[0]); |
| 2198 | if (atomSize < 16 || (atomSize % 4) != 0) { |
| 2199 | return false; |
| 2200 | } |
| 2201 | |
| 2202 | bool success = false; |
| 2203 | if (isCompatibleBrand(U32_AT(&header[8]))) { |
| 2204 | success = true; |
| 2205 | } else { |
| 2206 | size_t numCompatibleBrands = (atomSize - 16) / 4; |
| 2207 | for (size_t i = 0; i < numCompatibleBrands; ++i) { |
| 2208 | uint8_t tmp[4]; |
| 2209 | if (source->readAt(16 + i * 4, tmp, 4) != 4) { |
| 2210 | return false; |
| 2211 | } |
| 2212 | |
| 2213 | if (isCompatibleBrand(U32_AT(&tmp[0]))) { |
| 2214 | success = true; |
| 2215 | break; |
| 2216 | } |
| 2217 | } |
| 2218 | } |
| 2219 | |
| 2220 | if (!success) { |
| 2221 | return false; |
| 2222 | } |
| 2223 | |
| 2224 | *mimeType = MEDIA_MIMETYPE_CONTAINER_MPEG4; |
Andreas Huber | efdd088 | 2010-08-25 11:09:41 -0700 | [diff] [blame] | 2225 | *confidence = 0.4f; |
Andreas Huber | 261eb0c | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 2226 | |
| 2227 | return true; |
| 2228 | } |
| 2229 | |
| 2230 | bool SniffMPEG4( |
Andreas Huber | efdd088 | 2010-08-25 11:09:41 -0700 | [diff] [blame] | 2231 | const sp<DataSource> &source, String8 *mimeType, float *confidence, |
| 2232 | sp<AMessage> *) { |
Andreas Huber | 261eb0c | 2010-05-27 09:59:54 -0700 | [diff] [blame] | 2233 | if (BetterSniffMPEG4(source, mimeType, confidence)) { |
| 2234 | return true; |
| 2235 | } |
| 2236 | |
| 2237 | if (LegacySniffMPEG4(source, mimeType, confidence)) { |
| 2238 | LOGW("Identified supported mpeg4 through LegacySniffMPEG4."); |
| 2239 | return true; |
| 2240 | } |
| 2241 | |
| 2242 | return false; |
| 2243 | } |
| 2244 | |
Andreas Huber | e46b7be | 2009-07-14 16:56:47 -0700 | [diff] [blame] | 2245 | } // namespace android |
| 2246 | |